Move menu cursor size to UI section

osu.Game/Overlays/Settings/Sections/SizeSlider.cs

@@ -0,0 +1,15 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Game.Graphics.UserInterface;
+
+namespace osu.Game.Overlays.Settings.Sections
+{
+    /// <summary>
+    /// A slider intended to show a "size" multiplier number, where 1x is 1.0.
+    /// </summary>
+    internal class SizeSlider : OsuSliderBar<float>
+    {
+        public override string TooltipText => Current.Value.ToString(@"0.##x");
+    }
+}