Adds Content deletion

src/views/contents/ContentList.vue

@@ -6,6 +6,7 @@
     <template v-for="content in contents" :key="content">
       <content-card :content="content"
                     class="my-1"
+                    @content:deleted="onContentDeleted"
       ></content-card>
     </template>
 
@@ -40,6 +41,10 @@ const page_size = 10
 const errorMessage = ref()
 let last_id = null
 
+async function onContentDeleted(contentId) {
+  contents.value = contents.value.filter(c => c.id !== contentId)
+}
+
 const creatorIdWatcher = watch(
     () => props.creatorId,
     (newCreatorId) => {