feat: shell controller, TabStage, layout and theme plugins with repair view

env.catalog.json

@@ -370,6 +370,12 @@
       "default": "false",
       "description": "Only load plugins signed by a trusted key. Blocks uploads of unsigned files even in developer mode."
     },
+    {
+      "name": "TERMIX_SAFE_LAYOUT",
+      "group": "plugins",
+      "default": "false",
+      "description": "Start everyone in the layout repair view instead of the chosen layout. Use it when a layout plugin breaks the app."
+    },
     {
       "name": "TERMIX_BUNDLED_PLUGINS_DIR",
       "group": "plugins",