feat(mobile): html text (#25739)

* feat: html text

* feat: mobile ui showcase (#25827)

* feat: mobile ui showcase

* remove showcase from main app

* update fonts

* update code to be loaded from asset

* fix ci

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Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com>
# Conflicts:
#	mobile/lib/widgets/common/immich_sliver_app_bar.dart

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Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com>

mobile/packages/ui/.gitignore

@@ -0,0 +1,15 @@
+# Build artifacts
+build/
+
+# Platform-specific files are not needed as this is a Flutter UI package
+android/
+ios/
+
+# Test cache and generated files
+.dart_tool/
+.packages
+.flutter-plugins
+.flutter-plugins-dependencies
+
+# Fonts copied by build process
+fonts/