feat: add about page in admin with instance info + database update button

modules/Update/Commands/DatabaseUpdate.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Modules\Update\Commands;
+
+use CodeIgniter\CLI\BaseCommand;
+
+class DatabaseUpdate extends BaseCommand
+{
+    /**
+     * @var string
+     */
+    protected $group = 'maintenance';
+
+    /**
+     * @var string
+     */
+    protected $name = 'castopod:database-update';
+
+    /**
+     * @var string
+     */
+    protected $description = 'Runs all new database migrations for Castopod.';
+
+    public function run(array $params): void
+    {
+        $this->call('migrate', [
+            'all' => true,
+        ]);
+    }
+}