Fix the About Form not starting centered to parent

Core/FormBrowser.cs

@@ -8,6 +8,7 @@
 using System.Text;
 using TweetDick.Core.Handling;
 using TweetDick.Core.Other;
+using System.Drawing;
 
 namespace TweetDick.Core{
     public partial class FormBrowser : Form{
@@ -47,6 +48,11 @@ protected override void WndProc(ref Message m){
             }
         }
 
+        private void ShowChildForm(Form form){
+            form.Show(this);
+            form.Location = new Point(Location.X+Width/2-form.Width/2,Location.Y+Height/2-form.Height/2);
+        }
+
         // window setup
 
         private void SetupWindow(){
@@ -108,7 +114,7 @@ public void OpenAbout(){
             else{
                 currentFormAbout = new FormAbout();
                 currentFormAbout.FormClosed += (sender, args) => currentFormAbout = null;
-                currentFormAbout.Show(this);
+                ShowChildForm(currentFormAbout);
             }
         }