refactor: enhance role management UI and integrate profile management features

- Introduced a modal for managing user profiles, allowing for the creation and editing of profiles with improved state management.
- Updated the role filtering logic to enhance type safety and readability.
- Refactored UI components for better user experience, including improved button states and loading indicators.
- Removed outdated code related to permissions and streamlined the overall structure for maintainability.

packages/backend/convex/auth.config.ts

@@ -1,8 +0,0 @@
-export default {
-  providers: [
-    {
-      domain: process.env.CONVEX_SITE_URL,
-      applicationID: "convex",
-    },
-  ],
-};