Update angular

Author: renovate[bot]

frontend/package.json

@@ -4,15 +4,15 @@
   "description": "UKA på Blindern's ticket system",
   "type": "module",
   "dependencies": {
-    "@angular/animations": "^20.3.1",
-    "@angular/cdk": "~20.2.4",
-    "@angular/common": "^20.3.1",
-    "@angular/compiler": "^20.3.1",
-    "@angular/core": "^20.3.1",
-    "@angular/forms": "^20.3.1",
-    "@angular/platform-browser": "^20.3.1",
-    "@angular/platform-browser-dynamic": "^20.3.1",
-    "@angular/router": "^20.3.1",
+    "@angular/animations": "^21.0.0",
+    "@angular/cdk": "~21.0.0",
+    "@angular/common": "^21.0.0",
+    "@angular/compiler": "^21.0.0",
+    "@angular/core": "^21.0.0",
+    "@angular/forms": "^21.0.0",
+    "@angular/platform-browser": "^21.0.0",
+    "@angular/platform-browser-dynamic": "^21.0.0",
+    "@angular/router": "^21.0.0",
     "@types/jquery": "^3.5.33",
     "bootstrap-sass": "^3.4.3",
     "dompurify": "^3.2.7",
@@ -24,17 +24,17 @@
     "ngx-typeahead": "18.0.0",
     "rxjs": "~7.8.2",
     "tslib": "^2.8.1",
-    "zone.js": "~0.15.1"
+    "zone.js": "~0.16.0"
   },
   "devDependencies": {
-    "@angular-eslint/schematics": "20.6.0",
-    "@angular/build": "^20.3.2",
-    "@angular/cli": "^20.3.2",
-    "@angular/compiler-cli": "^20.3.1",
+    "@angular-eslint/schematics": "21.0.1",
+    "@angular/build": "^21.0.0",
+    "@angular/cli": "^21.0.0",
+    "@angular/compiler-cli": "^21.0.0",
     "@eslint/js": "9.39.1",
     "@types/dompurify": "^3.2.0",
     "@types/jasmine": "~5.1.9",
-    "angular-eslint": "20.6.0",
+    "angular-eslint": "21.0.1",
     "eslint": "9.39.1",
     "eslint-config-prettier": "10.1.8",
     "eslint-plugin-prettier": "5.5.4",