RangeSlider Thumbs Gets Progressively More Misaligned

[Dealman]

Describe the bug

This was brought up in #4113 and is not fixed, however @timunie does provide a fairly decent replacement. However it's not a 1:1 match in terms of styling, but it can sorted out relatively easily.

That said, this is indeed still a bug. For example;

<mah:RangeSlider Minimum="0" Maximum="255" LowerValue="130" UpperValue="255" TickPlacement="TopLeft" TickFrequency="5" IsSnapToTickEnabled="True"/>

Yields this result where the snapping of the LeftThumb is inaccurate.

Steps to reproduce

1. Copy the aforementioned code
2. Watch as either LeftThumb or RightThumb is aligned properly around the start/end, but as you change its value it gets more and more misaligned.

Expected behavior

LeftThumb and RightThumb should both be snapped to the position of their closest tick.

Actual behavior

LeftThumb and RightThumb gets misaligned the more it's moved around.

Environment

MahApps.Metro: v2.4.9
Windows: Windows 11 Build 22621 [Version 10.0.22621]
Visual Studio: Community 2022 [Version 17.4.4]
Target Framework: .NET 6

Screenshots