feat(vcs): redesign the Clone Repository dialog and support shallow clones (#866)

Clone Repository gets IntelliJ's layout: a source list on the left, a version-control selector, URL history, a directory picker, and a shallow-clone option (history truncated to N commits, git clone --depth N). Entries for hosting platforms without backend support were removed.

Co-authored-by: whyareyouserious <[email protected]>

src/bindings.ts

@@ -504,7 +504,7 @@ export const commands = {
 	 */
 	vcsStageHunks: (path: string, hunks: number[]) => typedError<null, IdeError>(__TAURI_INVOKE("vcs_stage_hunks", { path, hunks })),
 	/**  Clones a repository (Get from VCS). Works without an open project. */
-	vcsClone: (request: RequestId, url: string, dest: string, onOutput: Channel<string>) => typedError<null, IdeError>(__TAURI_INVOKE("vcs_clone", { request, url, dest, onOutput })),
+	vcsClone: (request: RequestId, url: string, dest: string, depth: number | null, onOutput: Channel<string>) => typedError<null, IdeError>(__TAURI_INVOKE("vcs_clone", { request, url, dest, depth, onOutput })),
 	/**  `git init` in `dir` (File › New Project… "Create Git repository"). */
 	vcsInit: (dir: string) => typedError<null, IdeError>(__TAURI_INVOKE("vcs_init", { dir })),
 	/**