diff --git a/package-lock.json b/package-lock.json
old mode 100755
new mode 100644
index 1161e59..43c7d61
--- a/package-lock.json
+++ b/package-lock.json
@@ -862,9 +862,9 @@
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-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
-      "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw=="
+      "version": "5.7.4",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+      "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg=="
     },
     "acorn-globals": {
       "version": "4.3.4",
@@ -876,9 +876,9 @@
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-          "version": "6.3.0",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.3.0.tgz",
-          "integrity": "sha512-/czfa8BwS88b9gWQVhc8eknunSA2DoJpJyTQkhheIf5E48u1N0R4q/YxxsAeqRrmK9TQ/uYfgLDfZo91UlANIA=="
+          "version": "6.4.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+          "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA=="
         }
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@@ -2672,7 +2672,8 @@
         },
         "ansi-regex": {
           "version": "2.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
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           "version": "1.2.0",
@@ -2690,11 +2691,13 @@
         },
         "balanced-match": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
+          "optional": true,
           "requires": {
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             "concat-map": "0.0.1"
@@ -2707,15 +2710,18 @@
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         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -2818,7 +2824,8 @@
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         "inherits": {
           "version": "2.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -2828,6 +2835,7 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -2840,17 +2848,20 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
         },
         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -2867,6 +2878,7 @@
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -2939,7 +2951,8 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -2949,6 +2962,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -3024,7 +3038,8 @@
         },
         "safe-buffer": {
           "version": "5.1.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
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           "version": "2.1.2",
@@ -3054,6 +3069,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -3071,6 +3087,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -3109,11 +3126,13 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         }
       }
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@@ -3766,9 +3785,9 @@
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       "dependencies": {
         "acorn": {
-          "version": "6.3.0",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.3.0.tgz",
-          "integrity": "sha512-/czfa8BwS88b9gWQVhc8eknunSA2DoJpJyTQkhheIf5E48u1N0R4q/YxxsAeqRrmK9TQ/uYfgLDfZo91UlANIA=="
+          "version": "6.4.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+          "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA=="
         },
         "escodegen": {
           "version": "1.12.0",
@@ -3836,6 +3855,14 @@
         "verror": "1.10.0"
       }
     },
+    "key-pressed": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/key-pressed/-/key-pressed-0.0.1.tgz",
+      "integrity": "sha1-1oL7THwQQpKaW8iGNnKMpxIg3rs=",
+      "requires": {
+        "vkey": "0.0.3"
+      }
+    },
     "kind-of": {
       "version": "6.0.2",
       "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
@@ -4056,6 +4083,36 @@
         }
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+    "mouse-position": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/mouse-position/-/mouse-position-2.1.0.tgz",
+      "integrity": "sha512-Ra8/RFn9e9/D2v9syhF5bLo4yiWvqZzcC/5bHOvkixDAkvO3WhlWN2xQRHSirMoYk2bagIae2upXXwxTxzI3BQ==",
+      "requires": {
+        "events": "^1.0.1"
+      },
+      "dependencies": {
+        "events": {
+          "version": "1.1.1",
+          "resolved": "https://registry.npmjs.org/events/-/events-1.1.1.tgz",
+          "integrity": "sha1-nr23Y1rQmccNzEwqH1AEKI6L2SQ="
+        }
+      }
+    },
+    "mouse-pressed": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/mouse-pressed/-/mouse-pressed-0.0.1.tgz",
+      "integrity": "sha1-HmKumS15Zhd+X/xJyDkSjhsnt7s=",
+      "requires": {
+        "events": "^1.0.1"
+      },
+      "dependencies": {
+        "events": {
+          "version": "1.1.1",
+          "resolved": "https://registry.npmjs.org/events/-/events-1.1.1.tgz",
+          "integrity": "sha1-nr23Y1rQmccNzEwqH1AEKI6L2SQ="
+        }
+      }
+    },
     "ms": {
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       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
@@ -6035,6 +6092,12 @@
       "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
       "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c="
     },
+    "typescript": {
+      "version": "3.8.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.8.3.tgz",
+      "integrity": "sha512-MYlEfn5VrLNsgudQTVJeNaQFUAI7DkhnOjdpAp4T+ku1TfQClewlbSuTVHiA+8skNBgaf02TL/kLOvig4y3G8w==",
+      "dev": true
+    },
     "uncss": {
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       "resolved": "https://registry.npmjs.org/uncss/-/uncss-0.17.2.tgz",
@@ -6261,6 +6324,11 @@
         "extsprintf": "^1.2.0"
       }
     },
+    "vkey": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/vkey/-/vkey-0.0.3.tgz",
+      "integrity": "sha1-Y03XlS6ywRUxvxhZ8ObUGUeAM98="
+    },
     "vlq": {
       "version": "0.2.3",
       "resolved": "https://registry.npmjs.org/vlq/-/vlq-0.2.3.tgz",