removed hashing and saving to sql from view and moved it to appcontroller

Project.Controller/AppController.cs

@@ -1,6 +1,13 @@
-namespace Project.Controller;
+using Project.Persistence;
+using Project.Model;
+namespace Project.Controller;
 
 public class AppController
 {
-
+    public static void NewLoginSave(string username, string password, string email)
+    {
+        string hashedPassword = ShaHash.HashPassword(password);
+        var user = new Model.NewUser(username, hashedPassword, email);
+        SQLite.SaveUser(user);
+    }
 }

Project.Persistence/ShaHash.cs

@@ -11,11 +11,11 @@ public static class ShaHash
             // convert string to byte array and hash
             byte[] bytes = sha256Hash.ComputeHash(Encoding.UTF8.GetBytes(password));
 
-            // Byte-Array als Hex-String formatieren
+            // convert byte array to hex-string - x2 = hex format
             StringBuilder builder = new StringBuilder();
             foreach (var b in bytes)
             {
-                builder.Append(b.ToString("x2")); // x2 = hex format
+                builder.Append(b.ToString("x2"));
             }
             return builder.ToString();
         }

Project.View/NewLogin/NewLogin.axaml.cs

@@ -26,10 +26,8 @@ public partial class NewLogin : Window
         string username = NewLoginUsernameBox.Text?.Trim();
         string password = NewLoginPasswordBox.Text?.Trim();
         string email = NewLoginEmailBox.Text?.Trim();
-        string hashedPassword = ShaHash.HashPassword(password);
+        //give strings to appcontroller and keep working on them there
-        var user = new Model.NewUser(username, hashedPassword, email);
+        AppController.NewLoginSave(username, password, email);
-        SQLite.SaveUser(user);
-
         Close();
     }