fix prevention that click card when click on notification buttons

src/components/Notification.vue

@@ -14,7 +14,7 @@
       class="q-ma-xs"
       title="Löschen"
       style="position: absolute; top: 0; right: 0; z-index: 999"
-      @click="dismiss"
+      @click.stop.prevent="dismiss"
     />
     <q-card-section class="q-pa-xs">
       <div class="text-overline">{{ dateString }}</div>
@@ -34,7 +34,7 @@
         flat
         dense
         size="sm"
-        @click="accept"
+        @click.stop.prevent="accept"
       />
       <q-btn
         v-if="modelValue.reject"
@@ -44,7 +44,7 @@
         flat
         dense
         size="sm"
-        @click="reject"
+        @click.stop.prevent="reject"
       />
     </q-card-actions>
   </q-card>