Check if location is set before launching barcode scanner

lib/l10n

@@ -1 +1 @@
-Subproject commit 7a23f04bfc11dd099511536bdb8b72a9b35edecf
+Subproject commit c2348a65593f92e8fa4c2dc643baf8fdafd48ca4

lib/widget/location_display.dart

@@ -298,6 +298,7 @@ List<Widget> detailTiles() {
 
     tiles.add(locationDescriptionCard(includeActions: false));
     
+    if (location != null) {
       // Stock adjustment actions
       if (InvenTreeAPI().checkPermission('stock', 'change')) {
         // Scan items into location
@@ -319,6 +320,7 @@ List<Widget> detailTiles() {
             )
         );
       }
+    }
 
     // Move location into another location
     // TODO: Implement this!
@@ -332,6 +334,19 @@ List<Widget> detailTiles() {
     );
      */
 
+    if (tiles.length <= 1) {
+      tiles.add(
+        ListTile(
+          title: Text(
+              L10().actionsNone,
+            style: TextStyle(
+              fontStyle: FontStyle.italic
+            ),
+          )
+        )
+      );
+    }
+
     return tiles;
   }