auto add strict null checks

src/tsconfig.strictNullChecks.json

@@ -4,12 +4,10 @@
     "strictNullChecks": true
   },
   "files": [
-    "./contentScript/pageEditor/selectElement.ts",
-    "./types/helpers.test.ts",
     "../end-to-end-tests/auth.setup.ts",
     "../end-to-end-tests/env.ts",
-    "../end-to-end-tests/fixtures/extensionBase.ts",
     "../end-to-end-tests/fixtures/envSetup.ts",
+    "../end-to-end-tests/fixtures/extensionBase.ts",
     "../end-to-end-tests/pageObjects/constants.ts",
     "../end-to-end-tests/pageObjects/extensionConsole/localIntegrationsPage.ts",
     "../end-to-end-tests/pageObjects/extensionConsole/modsPage.ts",
@@ -22,6 +20,7 @@
     "./__mocks__/@/background/messenger/strict/api.ts",
     "./__mocks__/@/components/DelayedRender.tsx",
     "./__mocks__/@/components/Stylesheets.tsx",
+    "./__mocks__/@/components/asyncIcon.ts",
     "./__mocks__/@/contentScript/focusCaptureDialog.ts",
     "./__mocks__/@/hooks/useContextInvalidated.ts",
     "./__mocks__/@/icons/getSvgIcon.ts",
@@ -774,6 +773,7 @@
     "./sidebar/LoginPanel.tsx",
     "./sidebar/RendererComponent.tsx",
     "./sidebar/SidebarErrorBoundary.tsx",
+    "./sidebar/UnavailableOverlay.tsx",
     "./sidebar/components/RootCancelledPanel.tsx",
     "./sidebar/components/RootErrorPanel.tsx",
     "./sidebar/connectedTarget.tsx",
@@ -787,7 +787,6 @@
     "./sidebar/sidePanel.tsx",
     "./sidebar/sidebarSelectors.ts",
     "./sidebar/staticPanelUtils.tsx",
-    "./sidebar/UnavailableOverlay.tsx",
     "./sidebar/useHideEmptySidebar.ts",
     "./starterBricks/contextMenu/contextMenuReader.ts",
     "./starterBricks/contextMenu/types.ts",
@@ -904,6 +903,7 @@
     "./types/browserTypes.ts",
     "./types/contract.ts",
     "./types/deploymentTypes.ts",
+    "./types/helpers.test.ts",
     "./types/helpers.ts",
     "./types/iconTypes.ts",
     "./types/inputTypes.ts",