Fix theme gallery submission system

module_index.json

@@ -155,7 +155,7 @@
         "version": "0.1",
         "author": "Starbeamrainbowlabs",
         "description": "Adds a theme gallery page and optional automatic theme updates. Contacts a remote server, where IP addresses are stored in automatic server logs for security and attack mitigation purposes.",
-        "lastupdate": 1566833304,
+        "lastupdate": 1566849483,
         "optional": false,
         "extra_data": []
     },

modules/feature-theme-gallery.php

@@ -52,7 +52,8 @@ register_module([
 			
 			$content = "<h1>Theme Gallery</h1>
 			
-			<form method='get' action='theme-gallery-select'>
+			<form method='get' action='index.php'>
+			<input type='hidden' name='action' value='theme-gallery-select' />
 			<div class='grid-large theme-list'>\n";
 			foreach($themes_available as $theme) {
 				$selected = $theme->id == $settings->css_theme_gallery_selected_id ? " selected" : "";