Resolve "Frontend for Models"

Closes #1 (closed)

aleksis/apps/lesrooster/frontend/components/lesson_raster/LessonRaster.vue

@@ -146,10 +146,11 @@
       </v-card>
     </v-hover>
 
-    <div v-for="slot in slots" :key="slot.id">
+    <template v-for="slot in slots">
       <v-menu offset-y>
         <template #activator="{ on, attrs }">
           <slot-card
+            :key="slot.id"
             :item="slot"
             :disabled="$apollo.queries.items.loading"
             @click:delete="deleteSingularSlot"
@@ -171,7 +172,7 @@
           </v-list-item>
         </v-list>
       </v-menu>
-    </div>
+    </template>
 
     <delete-dialog
       :gql-mutation="deleteMutation"