added smtpconfig class and put smtp config data into resources json file

csharp/App/Backend/Mailer/Mailer.cs

@@ -1,16 +1,20 @@
+using System.Diagnostics.CodeAnalysis;
 using InnovEnergy.App.Backend.DataTypes;
 using MailKit.Net.Smtp;
 using MimeKit;
+using JsonSerializer = System.Text.Json.JsonSerializer;
 
 namespace InnovEnergy.App.Backend.Mailer;
 public static class Mailer
     {
+    [UnconditionalSuppressMessage("Trimming", "IL2026:Members annotated with 'RequiresUnreferencedCodeAttribute' require dynamic access otherwise can break functionality when trimming application code", Justification = "<Pending>")]
     public static Boolean SendVerificationMessage (User emailRecipientUser)
         {
+            var config = JsonSerializer.Deserialize<SmptConfig>(File.OpenRead("./Resources/smtpConfig.json"))!;
             var email = new MimeMessage();
 
             email.From.Add(new MailboxAddress("InnovEnergy", "noreply@innov.energy"));
-            email.To.Add(new MailboxAddress(emailRecipientUser.Name, "fern95@ethereal.email"));
+            email.To.Add(new MailboxAddress(emailRecipientUser.Name, "fern95@ethereal.email")); //TODO CHANGE ME
 
             email.Subject = "Create a new password for your Innovenergy-Account";
             email.Body = new TextPart(MimeKit.Text.TextFormat.Plain) { 
@@ -19,10 +23,10 @@ public static class Mailer
             };
             using (var smtp = new SmtpClient())
             {
-                smtp.Connect("smtp.ethereal.email", 587, false);
+                smtp.Connect(config.Url, config.Port, false);
 
                 // Todo put me into urlAndKey.json
-                smtp.Authenticate("fern95@ethereal.email", "dYKVnc4RQNEFckHaNV");
+                smtp.Authenticate(config.Username, config.Password);
 
                 smtp.Send(email);
                 smtp.Disconnect(true);

csharp/App/Backend/Mailer/SmptConfig.cs

@@ -0,0 +1,13 @@
+namespace InnovEnergy.App.Backend.Mailer;
+
+public class SmptConfig
+{
+    public String Url { get; init; }
+    public String Username { get; init; }
+    public String Password { get; init; }
+    public Int32  Port { get; init; }
+
+    public SmptConfig()
+    { }
+
+}

csharp/App/Backend/Resources/smtpConfig.json

@@ -0,0 +1,6 @@
+{
+  "Url": "smtp.ethereal.email",
+  "Port": 587,
+  "Username": "fern95@ethereal.email",
+  "Password": "dYKVnc4RQNEFckHaNV"
+}