feat(web): Change the primary asset of a stack (#18913)

* - Add set primary primary asset button to asset viewer

* - Cleanup
- change AssetAction to contain a StackResponseDto
- Properly update displayed stack at bottom of the asset viewer

* - update the assetStore with the changed stack

* - Cleanup

web/src/lib/components/asset-viewer/asset-viewer.svelte

@@ -338,7 +338,10 @@
         await handleGetAllAlbums();
         break;
       }
-
+      case AssetAction.SET_STACK_PRIMARY_ASSET: {
+        stack = action.stack;
+        break;
+      }
       case AssetAction.KEEP_THIS_DELETE_OTHERS:
       case AssetAction.UNSTACK: {
         closeViewer();