enhance: refresh braches immediately after a branch has been added/deleted

Author: love-linger

src/ViewModels/CreateBranch.cs

@@ -129,7 +129,11 @@ public override Task<bool> Sure()
                     Commands.Branch.Create(_repo.FullPath, _name, _baseOnRevision);
                 }
 
-                CallUIThread(() => _repo.SetWatcherEnabled(true));
+                CallUIThread(() =>
+                {
+                    _repo.MarkBranchesDirtyManually();
+                    _repo.SetWatcherEnabled(true);
+                });
                 return true;
             });
         }

src/ViewModels/DeleteBranch.cs

@@ -65,7 +65,11 @@ public override Task<bool> Sure()
                     Commands.Branch.DeleteRemote(_repo.FullPath, Target.Remote, Target.Name);
                 }
 
-                CallUIThread(() => _repo.SetWatcherEnabled(true));
+                CallUIThread(() =>
+                {
+                    _repo.MarkBranchesDirtyManually();
+                    _repo.SetWatcherEnabled(true);
+                });
                 return true;
             });
         }