Move a few ESLint rules where they are needed.

js/tests/unit/.eslintrc.json

@@ -4,5 +4,10 @@
   ],
   "env": {
     "jasmine": true
+  },
+  "rules": {
+    "unicorn/consistent-function-scoping": "off",
+    "unicorn/no-useless-undefined": "off",
+    "unicorn/prefer-add-event-listener": "off"
   }
 }