Update authentication methods and UI components, remove redundant file

This commit accomplishes a few modifications including the elimination of `use-toast.tsx` due to redundancy. The authentication methods in `personal-accounts-server-actions.ts` were refactored to improve service integration and data handling. Additionally, UI components were updated for better readability and clarity. Cascading deletion was enabled in the `schema.sql` file for 'invited_by' reference.

packages/shared/src/hooks/use-csrf-token.ts

@@ -1,15 +0,0 @@
-import { useContext } from 'react';
-
-import { CsrfTokenContext } from '@kit/contexts/csrf.context';
-
-/**
- * @description Retrieves the current CSRF token in the CsrfTokenContext context
- * If not found, it will return an empty string. If required, the API will throw an error
- */
-function useCsrfToken() {
-  const token = useContext(CsrfTokenContext);
-
-  return token ?? '';
-}
-
-export default useCsrfToken;