Fix strange menu scrolling behavior on web

Author: VirtuGuy

source/funkin/ui/freeplay/FreeplayState.hx

@@ -1730,12 +1730,12 @@ class FreeplayState extends MusicBeatSubState
 
     handleDirectionalInput(elapsed);
 
-    final wheelAmount:Float = #if !html5 FlxG.mouse.wheel #else FlxG.mouse.wheel / 8 #end;
+    final wheelAmount:Int = Std.int(FlxMath.bound(FlxG.mouse.wheel, -1, 1));
 
     if (wheelAmount != 0)
     {
       dj?.onPlayerAction(); // dj?.resetAFKTimer();
-      changeSelection(-Math.round(wheelAmount));
+      changeSelection(-wheelAmount);
     }
 
     handleDifficultySwitch();

source/funkin/ui/story/StoryMenuState.hx

@@ -6,6 +6,7 @@ import flixel.group.FlxGroup.FlxTypedGroup;
 import flixel.text.FlxText;
 import flixel.tweens.FlxEase;
 import flixel.tweens.FlxTween;
+import flixel.math.FlxMath;
 import flixel.util.FlxColor;
 import flixel.util.FlxTimer;
 import funkin.audio.FunkinSound;
@@ -372,21 +373,12 @@ class StoryMenuState extends MusicBeatState
           changeDifficulty(0);
         }
 
-        #if !html5
-        if (FlxG.mouse.wheel != 0)
-        {
-          changeLevel(-Math.round(FlxG.mouse.wheel));
-        }
-        #else
-        if (FlxG.mouse.wheel < 0)
-        {
-          changeLevel(-Math.round(FlxG.mouse.wheel / 8));
-        }
-        else if (FlxG.mouse.wheel > 0)
+        final wheelAmount:Int = Std.int(FlxMath.bound(FlxG.mouse.wheel, -1, 1));
+
+        if (wheelAmount != 0)
         {
-          changeLevel(-Math.round(FlxG.mouse.wheel / 8));
+          changeLevel(-wheelAmount);
         }
-        #end
 
         // TODO: Querying UI_RIGHT_P (justPressed) after UI_RIGHT always returns false. Fix it!
         if (controls.UI_RIGHT_P #if FEATURE_TOUCH_CONTROLS