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

---------

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

mobile/packages/ui/showcase/pubspec.yaml

@@ -0,0 +1,47 @@
+name: showcase
+publish_to: 'none'
+
+version: 1.0.0+1
+
+environment:
+  sdk: ^3.9.2
+
+dependencies:
+  flutter:
+    sdk: flutter
+  immich_ui:
+    path: ../
+  go_router: ^17.0.1
+  syntax_highlight: ^0.5.0
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  flutter_lints: ^6.0.0
+
+flutter:
+  uses-material-design: true
+  assets:
+    - assets/
+    - assets/themes/
+    - lib/pages/components/examples/
+
+  fonts:
+    - family: GoogleSans
+      fonts:
+        - asset: ../../../fonts/GoogleSans/GoogleSans-Regular.ttf
+        - asset: ../../../fonts/GoogleSans/GoogleSans-Italic.ttf
+          style: italic
+        - asset: ../../../fonts/GoogleSans/GoogleSans-Medium.ttf
+          weight: 500
+        - asset: ../../../fonts/GoogleSans/GoogleSans-SemiBold.ttf
+          weight: 600
+        - asset: ../../../fonts/GoogleSans/GoogleSans-Bold.ttf
+          weight: 700
+    - family: GoogleSansCode
+      fonts:
+        - asset: ../../../fonts/GoogleSansCode/GoogleSansCode-Regular.ttf
+        - asset: ../../../fonts/GoogleSansCode/GoogleSansCode-Medium.ttf
+          weight: 500
+        - asset: ../../../fonts/GoogleSansCode/GoogleSansCode-SemiBold.ttf
+          weight: 600