ux: add missing progress description

Author: love-linger

src/ViewModels/CreateBranch.cs

@@ -126,6 +126,7 @@ public override Task<bool> Sure()
                 }
                 else
                 {
+                    SetProgressDescription($"Create new branch '{_name}'");
                     Commands.Branch.Create(_repo.FullPath, _name, _baseOnRevision);
                 }
 

src/ViewModels/GitFlowFinish.cs

@@ -42,6 +42,7 @@ public override Task<bool> Sure()
                         break;
                 }
 
+                SetProgressDescription($"Git Flow - finishing {_branch.Name} ...");
                 var succ = new Commands.GitFlow(_repo.FullPath).Finish(_type, branch, KeepBranch);
                 CallUIThread(() => _repo.SetWatcherEnabled(true));
                 return succ;

src/ViewModels/GitFlowStart.cs

@@ -65,6 +65,7 @@ public override Task<bool> Sure()
             _repo.SetWatcherEnabled(false);
             return Task.Run(() =>
             {
+                SetProgressDescription($"Git Flow - starting {_prefix}{_name} ...");
                 var succ = new Commands.GitFlow(_repo.FullPath).Start(_type, _name);
                 CallUIThread(() => _repo.SetWatcherEnabled(true));
                 return succ;