Fix notification deletion: save {} instead of [] when list is empty

Only modify the two files that need the fix, without any formatting changes.

Co-authored-by: Sunwuyuan <88357633+Sunwuyuan@users.noreply.github.com>

src/pages/debug-init.vue

@@ -26,7 +26,7 @@
                 label="server.authDomain"
               />
             </v-form>
-            <v-divider class="my-4" />
+            <v-divider class="my-4"/>
 
             <v-btn
               class="me-2"