fix: local changes did not refresh after .gitmodule changed (#1508)

Signed-off-by: leo <[email protected]>

Author: love-linger

src/Models/Watcher.cs

@@ -256,6 +256,7 @@ private void HandleWorkingCopyFileChanged(string name)
             if (name.Equals(".gitmodules", StringComparison.Ordinal))
             {
                 _updateSubmodules = DateTime.Now.AddSeconds(1).ToFileTime();
+                _updateWC = DateTime.Now.AddSeconds(1).ToFileTime();
                 return;
             }