chore(deps): bump liquid_glass_widgets from 0.18.1 to 0.19.0

[dependabot]

Bumps liquid_glass_widgets from 0.18.1 to 0.19.0.

Changelog

Sourced from liquid_glass_widgets's changelog.

0.19.0

💥 Breaking: Pre-v1.0 Public API Cleanup

A pre-release naming audit to establish consistent, idiomatic conventions before v1.0 locks the API.

Renames

Old	New	Reason
GlassBottomBarExtraButton	GlassTabBarExtraButton	Tracks parent rename GlassBottomBar → GlassTabBar
GlassGroupItem	GlassButtonGroupItem	Mirrors Flutter's DropdownMenuItem pattern
SheetState	GlassSheetState	Prevents collision with Material 3 sheet infrastructure
SheetMode	GlassSheetMode	Same — too generic as a bare name
FillTransition	GlassFillTransition	Too generic as a bare name
ExtraButtonPosition	GlassExtraButtonPosition	Ambiguous without prefix

Migration: A @Deprecated typedef for GlassBottomBarExtraButton is provided. All other old names will produce compile errors — migration is mechanical find-and-replace.

GlassSegment — new concrete class

GlassSegment was previously a typedef alias for GlassTab. It is now a proper class with a focused API for GlassSegmentedControl:

// GlassSegment — for GlassSegmentedControl only
GlassSegment({ Widget? icon, String? label, String? tooltip, String? semanticLabel, bool enabled = true })
// GlassTab — for GlassTabBar.bottom() and GlassTabBar.searchable()
GlassTab({ Widget? icon, Widget? activeIcon, String? label, Color? glowColor, double? thickness })

Fields like activeIcon, glowColor, and thickness are navigation-specific and only exist on GlassTab. GlassSegment adds tooltip and enabled (with built-in disabled rendering at 38% opacity).

Barrel hygiene

Internal types (SheetSnapshot, SheetGeometry, GesturePhase, GestureArena, FrozenState) are no longer accessible from the package barrel. These were implementation details that leaked through part file exports.

⚡ Performance

• Shader: interactive_indicator.frag — replaced pow() calls with multiply chains; collapsed duplicate rim pass; zero transcendental functions in highlight path.
• Shader: liquid_glass_final_render.frag — ⁶√x computed via sqrt cascade (3 SFU vs 2 transcendentals); sceneSDF samples reduced from 5 → 4.
• Dart: resolveAdaptiveRadius scoped to MediaQuery.viewPaddingOf + MediaQuery.sizeOf — glass widgets no longer rebuild on keyboard or unrelated MediaQueryData changes.
• Dart: Searchable tab bar and GlassSegmentedControl spring animations now use ListenableBuilder scoped to the indicator subtree. Verified on-device: zero State.build() calls during 120Hz spring animation.

🐛 Fix

• LiquidGlassWidgets.initialize() now pre-warms all four shaders — liquid_glass_geometry_blended.frag and liquid_glass_final_render.frag were previously lazy-loaded, causing first-frame jank.
• GlassSegment.enabled = false now blocks tap/tapDown — disabled segments rendered at 38% opacity but still fired onSegmentSelected in both fixed-width and scrollable modes. Tap and onTapDown handlers now early-return when the target segment is disabled.

... (truncated)

Commits

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[dependabot]

Looks like liquid_glass_widgets is up-to-date now, so this is no longer needed.