Implement unban functionality

src/components/moderation/ProfileManager.tsx

@@ -107,7 +107,12 @@ export function ProfileManager() {
 
       if (logError) logger.error('Failed to log admin action', { error: getErrorMessage(logError) });
 
-      handleSuccess('Success', `User ${ban ? 'banned' : 'unbanned'} successfully.`);
+      handleSuccess(
+        'Success', 
+        ban 
+          ? 'User banned successfully. They have been signed out and cannot access the application.' 
+          : 'User unbanned successfully. They can now access the application normally.'
+      );
 
       // Refresh profiles
       fetchProfiles();