[Manager] Fallback text on info panel (#3138)

Co-authored-by: filtered <176114999+webfiltered@users.noreply.github.com>

src/components/dialog/content/manager/infoPanel/InfoPanelMultiItem.vue

@@ -1,7 +1,7 @@
 <template>
-  <div class="flex flex-col h-full">
+  <div v-if="nodePacks?.length" class="flex flex-col h-full">
     <div class="p-6 flex-1 overflow-auto">
-      <InfoPanelHeader :node-packs="nodePacks">
+      <InfoPanelHeader :node-packs>
         <template #thumbnail>
           <PackIconStacked :node-packs="nodePacks" />
         </template>
@@ -24,6 +24,9 @@
       </div>
     </div>
   </div>
+  <div v-else class="mt-4 mx-8 flex-1 overflow-hidden text-sm">
+    {{ $t('manager.infoPanelEmpty') }}
+  </div>
 </template>
 
 <script setup lang="ts">