fix hardcoded values

BlueMine/MainWindow.xaml.cs

@@ -76,7 +76,7 @@ namespace BlueMine
 
         private void apiLinkButton_Click(object sender, RoutedEventArgs e)
         {
-            string url = "https://support.onliveit.eu:444/redmine/my/account";
+            string url = $"{_config.RedmineUrl}/my/account";
 
             var psi = new ProcessStartInfo
             {
@@ -130,7 +130,7 @@ namespace BlueMine
             var issueNum = IssueNumberTextBox.Text;
             if (int.TryParse(issueNum, out var issueId))
             {
-                string url = $"https://support.onliveit.eu:444/redmine/issues/{issueId}";
+                string url = $"{_config.RedmineUrl}/issues/{issueId}";
 
                 var psi = new ProcessStartInfo
                 {