Merge pull request #29 from tokenetes/fix-angular-core-version

updated to 21.0.7 as per dependabot alert here: https://github.com/to…

Author: tulshi

frontend/package.json

@@ -14,7 +14,7 @@
     "@angular/animations": "^17.3.0",
     "@angular/common": "^17.3.0",
     "@angular/compiler": "^17.3.0",
-    "@angular/core": "^17.3.0",
+    "@angular/core": "^21.0.7",
     "@angular/forms": "^17.3.0",
     "@angular/platform-browser": "^17.3.0",
     "@angular/platform-browser-dynamic": "^17.3.0",