Refactor Api-Client

Add Exceptionhandler, AlertService JSON-Converter
AppSettings via DI

Reformat Code

Jugenddienst Stunden/ViewModels/NoteViewModel.cs

@@ -2,9 +2,11 @@
 using CommunityToolkit.Mvvm.ComponentModel;
 using System.Windows.Input;
 
-namespace Jugenddienst_Stunden.ViewModels; 
+namespace Jugenddienst_Stunden.ViewModels;
+
 internal class NoteViewModel : ObservableObject, IQueryAttributable {
 	private Models.Note _note;
+
 	public string Text {
 		get => _note.Text;
 		set {
@@ -61,4 +63,4 @@ internal class NoteViewModel : ObservableObject, IQueryAttributable {
 		OnPropertyChanged(nameof(Text));
 		OnPropertyChanged(nameof(Date));
 	}
-}
+}