Revert breaking changes to e2e tests

Author: dlarocque

e2e/karma.conf.js

@@ -82,7 +82,7 @@ module.exports = function (config) {
         'resolveJsonModule': true,
         'esModuleInterop': true,
         'sourceMap': true,
-        'target': 'es2017',
+        'target': 'es5',
         'importHelpers': true,
         'noEmitOnError': true
       }

e2e/package.json

@@ -18,7 +18,7 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "firebase": "9.23.0"
+    "firebase": "11.0.0"
   },
   "devDependencies": {
     "@babel/core": "7.24.4",
@@ -34,10 +34,10 @@
     "karma-typescript": "5.5.4",
     "karma-typescript-es6-transform": "5.5.4",
     "mocha": "9.2.2",
-    "typescript": "5.5.4",
+    "typescript": "4.7.4",
     "webpack": "5.76.0",
-    "webpack-cli": "5.1.4",
-    "webpack-dev-server": "5.1.0"
+    "webpack-cli": "4.10.0",
+    "webpack-dev-server": "4.11.1"
   },
   "engines": {
     "node": ">=18.0.0"