infra: add linting and formatting for js projects (#230)

* wip

* wip

* wip

* format

* wip(mobile): lint and format

* cleanup

* nits

* nits

* idiomatic react

* nit

* format all root files

js/desktop/package.json

@@ -14,6 +14,8 @@
     "publish:mac": "echo '\n⚠️  Have you bumped the version in package.json? (current: '$(node -p \"require('./package.json').version\")') [y/N]' && read -r answer && [ \"$answer\" = \"y\" ] && APP_ENV=prod electron-forge publish --arch=arm64 && APP_ENV=prod electron-forge publish --arch=x64",
     "invalidate-gcs-cache": "gsutil setmeta -h 'Cache-Control:no-cache, no-store, must-revalidate' gs://flowy-releases/llink/darwin/arm64/RELEASES.json && gsutil setmeta -h 'Cache-Control:no-cache, no-store, must-revalidate' gs://flowy-releases/llink/darwin/x64/RELEASES.json && gsutil setmeta -h 'Cache-Control:no-cache, no-store, must-revalidate' gs://flowy-releases/llink/win32/x64/RELEASES",
     "lint": "eslint --ext .ts,.tsx .",
+    "format": "prettier --write \"src/**/*.{ts,tsx,js,jsx,json,css,md}\"",
+    "format:check": "prettier --check \"src/**/*.{ts,tsx,js,jsx,json,css,md}\"",
     "compile": "npx tsc --noEmit 2>&1 | grep '^src/'",
     "web:dev": "cross-env APP_ENV=dev vite --config vite.web.config.mts",
     "web:build": "cross-env APP_ENV=prod vite build --config vite.web.config.mts",
@@ -44,15 +46,17 @@
     "@types/node": "^25.3.0",
     "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
-    "@typescript-eslint/eslint-plugin": "^5.62.0",
-    "@typescript-eslint/parser": "^5.62.0",
     "@vitejs/plugin-react": "^5.1.4",
     "cross-env": "^10.1.0",
     "electron": "40.6.0",
     "eslint": "^8.57.1",
+    "eslint-config-prettier": "^10.1.8",
+    "eslint-import-resolver-typescript": "^4.4.5",
     "eslint-plugin-import": "^2.32.0",
     "eslint-plugin-react-hooks": "^7.0.1",
+    "prettier": "^3.8.3",
     "typescript": "^5.9.3",
+    "typescript-eslint": "^8.60.0",
     "vite": "^5.4.21"
   },
   "dependencies": {