feat: Blurhash integration

Resolve #6559

src/client/pages/messaging/messaging-room.message.vue

@@ -10,8 +10,7 @@
 				<mfm class="text" v-if="message.text" ref="text" :text="message.text" :i="$store.state.i"/>
 				<div class="file" v-if="message.file">
 					<a :href="message.file.url" rel="noopener" target="_blank" :title="message.file.name">
-						<img v-if="message.file.type.split('/')[0] == 'image'" :src="message.file.url" :alt="message.file.name"
-							:style="{ backgroundColor: message.file.properties.avgColor || 'transparent' }"/>
+						<img v-if="message.file.type.split('/')[0] == 'image'" :src="message.file.url" :alt="message.file.name"/>
 						<p v-else>{{ message.file.name }}</p>
 					</a>
 				</div>