chore: Optimize contact page for smaller displays (#12183)

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

app/javascript/dashboard/components-next/Conversation/ConversationCard/CardMessagePreview.vue

@@ -47,6 +47,7 @@ const unreadMessagesCount = computed(() => {
     </p>
     <div class="flex items-center flex-shrink-0 gap-2 pb-2">
       <Avatar
+        v-if="assignee.name"
         :name="assignee.name"
         :src="assignee.thumbnail"
         :size="20"

app/javascript/dashboard/components-next/Conversation/ConversationCard/CardMessagePreviewWithMeta.vue

@@ -96,6 +96,7 @@ defineExpose({
         />
       </div>
       <Avatar
+        v-if="assignee.name"
         :name="assignee.name"
         :src="assignee.thumbnail"
         :size="20"