fix: SFTP标签页离开后返回刷新状态丢失问题

frontend/src/layouts/MainLayout.vue

@@ -190,8 +190,10 @@ function handleSftpTabClose(tabId: string, connectionId: number, event: Event) {
       <div v-if="keepTerminalWorkspaceMounted" v-show="showTerminalWorkspace" class="h-full">
         <TerminalWorkspaceView :visible="showTerminalWorkspace" />
       </div>
-      <RouterView v-slot="{ Component }">
-        <component :is="Component" v-if="!showTerminalWorkspace" />
+      <RouterView v-slot="{ Component }">
+        <keep-alive :include="['SftpView']" :max="10">
+          <component :is="Component" v-if="!showTerminalWorkspace" :key="$route.fullPath" />
+        </keep-alive>
       </RouterView>
     </main>
   </div>