fix: solve logo render error of plugin list (#3888)

解决删除某个插件项导致其他插件项渲染失败的问题

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/kind bug
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#### What this PR does / why we need it:

解决插件列表渲染问题

#### Which issue(s) this PR fixes:
Fixes https://github.com/halo-dev/halo/issues/3866
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#### Special notes for your reviewer:


https://user-images.githubusercontent.com/106857035/235871211-ee469964-d7b3-41d3-ac9b-6997872ac507.mp4



#### Does this PR introduce a user-facing change?

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console/src/modules/system/plugins/PluginList.vue

@@ -323,7 +323,7 @@ const { data, isLoading, isFetching, refetch } = useQuery<Plugin[]>({
           class="box-border h-full w-full divide-y divide-gray-100"
           role="list"
         >
-          <li v-for="(plugin, index) in data" :key="index">
+          <li v-for="plugin in data" :key="plugin.metadata.name">
             <PluginListItem :plugin="plugin" @reload="refetch()" />
           </li>
         </ul>