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/.eslintrc.json

@@ -4,6 +4,21 @@
     "es6": true,
     "node": true
   },
+  "settings": {
+    "import/resolver": {
+      "typescript": {}
+    }
+  },
+  "rules": {
+    "@typescript-eslint/no-unused-vars": [
+      "error",
+      {
+        "argsIgnorePattern": "^_",
+        "varsIgnorePattern": "^_",
+        "caughtErrorsIgnorePattern": "^_"
+      }
+    ]
+  },
   "extends": [
     "eslint:recommended",
     "plugin:@typescript-eslint/eslint-recommended",
@@ -11,7 +26,8 @@
     "plugin:import/recommended",
     "plugin:import/electron",
     "plugin:import/typescript",
-    "plugin:react-hooks/recommended"
+    "plugin:react-hooks/recommended",
+    "prettier"
   ],
   "parser": "@typescript-eslint/parser"
 }