ui: Constants refactor (#26908)

* refactor: Constants

* refactor: Constants/Enums cleanup

* refactor: Constant objects instead of multiple single value constants

* refactor: Cleanup constants

tools/ui/src/lib/services/router.service.ts

@@ -1,4 +1,4 @@
-import { ROUTES } from '$lib/constants/routes';
+import { ROUTES } from '$lib/constants';
 
 export class RouterService {
 	static chat(id: string): string {