fix: Re-add the minimum value when calculating nearest tick for Slider's

[Acissathar]

PR Details

CalculateClosestTick in Slider.cs subtracts the Minimum to convert into a relative offset, does the tick-snapping math in that relative space, but then returns times * step without translating it back to the absolute value. This makes it so that any value you enter is going to have the Minimum subtracted from it when Minimum is a non-zero value, even if this makes the value go below the Minimum.

Adding it back in at the very end makes both the value and minimum be respected:

Related Issue

#3108

Types of changes

• Docs change / refactoring / dependency upgrade
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• My change requires a change to the documentation.
• I have added tests to cover my changes.
• All new and existing tests passed.
• I have built and run the editor to try this change out.