Finally a workaround the stupid CommandBar DataContext issues

Delete and Restore actions now work as intended
Renamed styles folder

ModernKeePass/ViewModels/EntryVm.cs

@@ -163,6 +163,7 @@ namespace ModernKeePass.ViewModels
         public ICommand SaveCommand { get; }
         public ICommand GeneratePasswordCommand { get; }
         public ICommand UndoDeleteCommand { get; }
+        public ICommand GoBackCommand { get; set; }
 
         public event PropertyChangedEventHandler PropertyChanged;
 

ModernKeePass/ViewModels/GroupVm.cs

@@ -113,6 +113,7 @@ namespace ModernKeePass.ViewModels
         public ICommand SortEntriesCommand { get; }
         public ICommand SortGroupsCommand { get; }
         public ICommand UndoDeleteCommand { get; }
+        public ICommand GoBackCommand { get; set; }
 
         private readonly PwGroup _pwGroup;
         private readonly IDatabaseService _database;