Set default notification image visibility to "when-available". Fixes #70

src/config.json.in

@@ -14,7 +14,7 @@
   "control-center-height": 600,
   "notification-window-width": 500,
   "keyboard-shortcuts": true,
-  "image-visibility": "always",
+  "image-visibility": "when-available",
   "transition-time": 200,
   "hide-on-clear": false,
   "hide-on-action": true,

src/configModel/configModel.vala

@@ -337,7 +337,7 @@ namespace SwayNotificationCenter {
         public ImageVisibility image_visibility {
             get;
             set;
-            default = ImageVisibility.ALWAYS;
+            default = ImageVisibility.WHEN_AVAILABLE;
         }
 
         /**

src/configSchema.json

@@ -84,7 +84,7 @@
     "image-visibility": {
       "type": "string",
       "description": "An explanation about the purpose of this instance.",
-      "default": "always",
+      "default": "when-available",
       "enum": ["always", "when-available", "never"]
     },
     "transition-time": {