public void Execute(object parameter)
        {
            // Try to delete the file, both from the file system, and the active memory.
            try
            {
                NotesRepo.DeleteNoteFile(notesViewModel.SelectedNote.Title + ".txt");

                notesViewModel.AllNotes.Remove(notesViewModel.SelectedNote);
                notesViewModel.FilterNotes();
                notesViewModel.SelectedNote = null;
            }
            catch (Exception)
            {
                Debug.Fail("Error deleting note file from file system.");
            }
        }
        // ASync function to load all notes from the file system.
        public async void LoadNotes()
        {
            this.AllNotes = await NotesRepo.LoadNotesFromFile();

            FilterNotes();
        }