Miscellaneous cleanup (onyx-dot-app#4516)

* stricter typing

* k

Author: pablonyx

web/.eslintrc.json

@@ -1,6 +1,21 @@
 {
   "extends": "next/core-web-vitals",
+  "plugins": ["unused-imports"],
   "rules": {
-    "@next/next/no-img-element": "off"
+    "@next/next/no-img-element": "off",
+    "react-hooks/exhaustive-deps": "off",
+    "no-unused-vars": "off",
+    "@typescript-eslint/no-unused-vars": "off",
+    "unused-imports/no-unused-imports": "warn",
+    "unused-imports/no-unused-vars": [
+      "warn",
+      {
+        "vars": "all",
+        "varsIgnorePattern": "^_",
+        "args": "after-used",
+        "argsIgnorePattern": "^_",
+        "ignoreRestSiblings": true
+      }
+    ]
   }
 }