feat(remote-dev): Remote Development in the project popup, opened in a new or this window

- The title bar project popup lists Remote Development… next to Open… and Clone Repository….
- Opening a remote project follows "Open project in" (new window / this window / ask) when this window already has a project, and confirms leaving the current one first.
- A remote project already open in another window focuses that window.
- A new window connects to the host itself and shows the connection progress on its welcome screen.
- Recent remote projects get Open in New Window.

src/platform/locales/text/zh.json

@@ -4175,12 +4175,12 @@
   "Delete remote": "删除远程",
   "Delete local": "删除本地",
   "Remote Development": "远程开发",
-  "The project runs on the remote host; this window shows it. The IDE backend is installed there on first use.": "项目在远程主机上运行，此窗口负责显示。首次使用时会在远程主机上安装 IDE 后端。",
+  "The project runs on the remote host; the IDE backend is installed there on first use.": "项目在远程主机上运行，首次使用时会在该主机上安装 IDE 后端。",
   "SSH configuration:": "SSH 配置：",
   "No SSH configurations": "没有 SSH 配置",
   "Project directory:": "项目目录：",
   "Remote Development…": "远程开发…",
-  "Opens a project folder on an SSH host in this window; the IDE backend runs on that host.": "在此窗口中打开 SSH 主机上的项目文件夹；IDE 后端在该主机上运行。",
+  "Opens a project folder on an SSH host; the IDE backend runs on that host.": "打开 SSH 主机上的项目文件夹；IDE 后端在该主机上运行。",
   "Disconnect from Remote Host": "断开与远程主机的连接",
   "Opens a terminal tab connected to an SSH configuration (`arg`: its id; otherwise a chooser).": "打开连接到 SSH 配置的终端标签页（`arg`：配置 id；否则显示选择器）。",
   "Connecting to the host…": "正在连接主机…",

src/platform/remote.ts

@@ -96,15 +96,21 @@ export async function restoreRemote(): Promise<RemoteSession | null> {
   return session;
 }
 
-/** Where the connection in progress is (`null`: none). */
-export const useRemoteProgress = create<{ progress: RemoteProgress | null }>(() => ({ progress: null }));
+/** Where the connection in progress is, and to which location (`null`: none). */
+export const useRemoteProgress = create<{ progress: RemoteProgress | null; location: string | null }>(() => ({
+  progress: null,
+  location: null,
+}));
 
 /** Opens `path` on the host of SSH configuration `sshConfig` in this window. */
 export async function connectRemote(sshConfig: string, path: string) {
   useProject.setState({ opening: true });
   const onProgress = new Channel<RemoteProgress>();
   onProgress.onmessage = (progress) => useRemoteProgress.setState({ progress });
-  useRemoteProgress.setState({ progress: { stage: "connecting", fraction: null } });
+  useRemoteProgress.setState({
+    progress: { stage: "connecting", fraction: null },
+    location: remoteLocation(sshConfig, path),
+  });
   try {
     const r = await call(commands.remoteConnect(sshConfig, path, onProgress));
     enableRemote({ sshConfig: r.sshConfig, root: r.root, host: r.host, commands: r.commands });
@@ -119,7 +125,7 @@ export async function connectRemote(sshConfig: string, path: string) {
     return r;
   } finally {
     useProject.setState({ opening: false });
-    useRemoteProgress.setState({ progress: null });
+    useRemoteProgress.setState({ progress: null, location: null });
   }
 }