feat: add descriptions to plugin host enable toggles

plugins/file-manager/locales/en.json

@@ -12,7 +12,8 @@
   "settings": {
     "host": {
       "enable": {
-        "label": "Enable File Manager"
+        "label": "Enable File Manager",
+        "description": "Browse and edit files on this host over SFTP."
       },
       "defaultPath": {
         "label": "Default Path"

plugins/file-manager/manifest.json

@@ -75,6 +75,7 @@
         "editorOrder": 60,
         "enableKey": "enableFileManager",
         "enableLabelKey": "settings.host.enable.label",
+        "enableDescriptionKey": "settings.host.enable.description",
         "enableDefault": true,
         "fields": [
           {