Maybe stream position should be zero

Author: Happypig375

CSharpMath.Maui.Example/MathKeyboard.xaml.cs

@@ -42,7 +42,7 @@ public Tab CurrentTab {
     public void SetButtonsTextColor(Color color, Color? placeholderRestingColor = null, Color? placeholderActiveColor = null) {
       foreach (var button in new MathButton[] { ShiftButton, ShiftCapitalsButton }.Concat(TabButtons))
         button.TextColor = color;
-      foreach (var button in new[] { LeftButton, RightButton}
+      foreach (var button in new[] { LeftButton, RightButton }
                             .Concat(ButtonGrids.SelectMany(grid => grid.Children)
                             .Where(child => child is MathInputButton button && button.Input != MathKeyboardInput.Backspace)
                             .Cast<MathInputButton>())) {

CSharpMath.Maui/Controls/Buttons.cs

@@ -35,6 +35,7 @@ public virtual void ButtonDraw() => Source = ImageSource.FromStream(() => {
           var stream = new System.IO.MemoryStream();
           painter.DrawToStream(stream);
           painter.LaTeX = originalLatexString;
+          stream.Position = 0;
           return stream;
         }
       }