new-bucket dialog: Enter in name field submits

Typing a name and hitting Enter did nothing — users had to move to
the Create button. Wire Enter on the name input to click the submit
path so the common flow is keyboard-only.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

config.php

@@ -1,7 +1,7 @@
 <?php
 
 define('APP_NAME', 'hyprcrd');
-define('APP_VERSION', '1.9.8');
+define('APP_VERSION', '1.9.9');
 
 // Database path — writable directory, outside webroot
 // DB_PATH / UPLOAD_DIR can be pre-defined by the Electron router for app isolation