Update dependency Avalonia.Themes.Fluent to 11.3.12

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
Avalonia.Themes.Fluent (source)	11.3.10 → 11.3.12

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Release Notes

AvaloniaUI/Avalonia (Avalonia.Themes.Fluent)

v11.3.12

Compare Source

v11.3.11

Compare Source

What's Changed

Enhancements

• Core – Add support for parsing BoxShadows with color functions by @​gehongyan in #​20321
• X11 – Set XkbSetDetectableAutoRepeat to true by @​flabbet in #​20360

Fixes

• Core – Fix thread-race condition in Dispatcher on shutdown by @​11v1 in #​20299
• Core – Fix NullReferenceException in TextShaperImpl.ShapeText on netstandard2.0 by @​adams85 in #​20369
• Core – Add null reference check for animation keyframes by @​drasticactions in #​20422
• Core – Fix accessibility with screen reader on TextBlock with inlines by @​codecat in #​20438
• Core – Fix BindingExpression.LeafNode throwing when nodes list is empty by @​grokys in #​20442
• Documentation – Update HelpLink for XAML namespace resolution by @​maxkatz6 in #​20371
• iOS – Fix TextInputResponder by @​kerams in #​19310
• Android – Call default back callbacks when not handled by @​emmauss in #​20452
• Windows – Remove obsolete clipboard format CF_TEXT. by @​yu-kopylov in #​20389
• Headless – Fix InvalidOperationException Dispatcher job loop detected by @​wieslawsoltes in #​20310

Full Changelog: AvaloniaUI/Avalonia@11.3.10...11.3.11

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