enhance: start checkout directly when there is no local changes but submodules

Signed-off-by: leo <longshuang@msn.cn>

Author: love-linger

src/ViewModels/Checkout.cs

@@ -22,6 +22,11 @@ public Checkout(Repository repo, string branch)
             DiscardLocalChanges = false;
         }
 
+        public override bool CanStartDirectly()
+        {
+            return _repo.LocalChangesCount == 0;
+        }
+
         public override async Task<bool> Sure()
         {
             using var lockWatcher = _repo.LockWatcher();

src/ViewModels/Repository.cs

@@ -1317,10 +1317,7 @@ public async Task CheckoutBranchAsync(Models.Branch branch)
 
             if (branch.IsLocal)
             {
-                if (_localChangesCount > 0 || _submodules.Count > 0)
-                    ShowPopup(new Checkout(this, branch.Name));
-                else
-                    await ShowAndStartPopupAsync(new Checkout(this, branch.Name));
+                await ShowAndStartPopupAsync(new Checkout(this, branch.Name));
             }
             else
             {