new trail view options: create copy & change visibility (#571)

* change visibility of multiple trails in trails view (multi-select)

* error handling

* create copy option added

* wait for meilisearch when updating trail

* remove toggles from dropdown

* change public/private logic

* adds loading spinner for bulk operations

* fixes trail duplicate

* fixes tags delete on visiblility change

* fix conflict resolving issue

* edit labels & german translation

---------

Co-authored-by: Christian Beutel <>
Co-authored-by: Flomp <Flomp@users.noreply.github.com>

web/src/routes/trail/edit/[id]/+page.svelte

@@ -272,6 +272,7 @@
         clearUndoRedoStack();
 
         if ($formData.expand!.gpx_data) {
+            $formData.id ??= cryptoRandomString({ length: 15 });
             const gpx = GPX.parse($formData.expand!.gpx_data);
             if (!(gpx instanceof Error)) {
                 if (gpx.rte && !gpx.trk) {