icon picker error for missing sets

zero.Backoffice.UI/app/components/ui-iconpicker.vue

@@ -10,6 +10,8 @@
   import { open as openOverlay } from '../services/overlay';
   import { extendObject } from '../utils';
   import { useUiStore } from '../ui/store';
+  import * as notifications from '../services/notification';
+  import { localize } from '../services/localization';
 
   export default {
     name: 'uiIconpicker',
@@ -87,7 +89,8 @@
 
       loadSet()
       {
-        this.iconSet = this.store.iconSets.find(x => x.alias === this.set);
+        const alias = this.set || 'feather';
+        this.iconSet = this.store.iconSets.find(x => x.alias === alias);
       },
 
       async pick()
@@ -97,6 +100,12 @@
           return;
         }
 
+        if (!this.iconSet)
+        {
+          notifications.error("@iconpicker.notfound.title", localize("@iconpicker.notfound.text", { tokens: { name: this.set || '' } }));
+          return;
+        }
+
         const result = await openOverlay(extendObject({
           model: {
             set: this.iconSet,

zero.Backoffice/Resources/Localization/zero.en-us.json

@@ -620,7 +620,11 @@
   },
 
   "iconpicker": {
-    "title": "Pick an icon"
+    "title": "Pick an icon",
+    "notfound": {
+      "title": "Icon set not found",
+      "text": "Could not locate a registered icon set (\"{name}\")"
+    }
   },
 
   "colorpicker": {