chore: lint typescript and jest codebase

.eslintignore

@@ -0,0 +1,27 @@
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+coverage
+
+# build folders
+/.next/
+/out/
+
+# production
+/build
+tmp
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# vercel
+.vercel

.eslintrc

@@ -1,9 +1,31 @@
 {
+  "parser": "@typescript-eslint/parser",
+  "plugins": ["@typescript-eslint", "jsx-a11y"],
+
+  "rules": {
+    "max-len": ["warn", { "tabWidth": 2 }]
+  },
+
   "extends": [
+    "eslint:recommended",
+    "plugin:eslint-comments/recommended",
     "next",
     "next/core-web-vitals",
+    "plugin:@typescript-eslint/recommended",
     "plugin:jsx-a11y/recommended",
     "prettier"
   ],
-  "plugins": ["jsx-a11y"]
+
+  "overrides": [
+    {
+      "files": ["test/**/*", "**/__+(tests|mocks|snapshots)__/**/*"],
+      "env": {
+        "jest/globals": true
+      },
+
+      "plugins": ["jest"],
+
+      "extends": ["plugin:jest/recommended"]
+    }
+  ]
 }