manager: make action execution screen have the same behavior as Magisk

based on pr https://github.com/tiann/KernelSU/pull/2321

* Magisk's behavior: Hide Bottom Navbar, Show close button if failed or success
and removed automatic exit when module execution success.

manager/app/src/main/res/values-zh-rCN/strings.xml

@@ -113,6 +113,7 @@
     <string name="grant_root_failed">获取 root 失败！</string>
     <string name="action">执行</string>
     <string name="open">打开</string>
+    <string name="close">关闭</string>
     <string name="enable_web_debugging">启用 WebView 调试</string>
     <string name="enable_web_debugging_summary">可用于调试 WebUI 。请仅在需要时启用。</string>
     <string name="direct_install">直接安装（推荐）</string>