fix: add authorization checks to database Livewire components

Added authorization checks to 11 database-related Livewire components
that were loading sensitive database configuration without verifying
user permissions.

Changes:
- Added authorize('view', $database) to all 8 database type General.php mount() methods
- Added authorization to Configuration.php before loading database
- Added authorization to BackupEdit.php before loading backup config
- Added authorization to Import.php before loading database resource

This prevents unauthorized users from accessing database credentials,
connection strings, and configuration details.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/Livewire/Project/Database/Mariadb/General.php

@@ -122,6 +122,7 @@ class General extends Component
     public function mount()
     {
         try {
+            $this->authorize('view', $this->database);
             $this->syncData();
             $this->server = data_get($this->database, 'destination.server');
             if (! $this->server) {