fix constraint on `flutter_chat_ui

pubspec.lock

@@ -466,11 +466,10 @@ packages:
   flutter_chat_ui:
     dependency: "direct main"
     description:
-      path: "packages/flutter_chat_ui"
-      ref: HEAD
-      resolved-ref: "03be67c8c81c8f637672ee03dd8f082d2c223627"
-      url: "https://github.com/Henry-Hiles/flutter_chat_ui"
-    source: git
+      name: flutter_chat_ui
+      sha256: cfbaac38f429beb33d9cc1ca920ae7ccbadbed282c99335d590d61306d3a3d0f
+      url: "https://pub.dev"
+    source: hosted
     version: "2.11.1"
   flutter_hooks:
     dependency: "direct main"

pubspec.yaml

@@ -40,14 +40,8 @@ dependencies:
   flyer_chat_image_message: ^2.2.2
   flyer_chat_system_message: ^2.1.13
   flyer_chat_file_message: ^2.3.1
-  flutter_chat_ui:
-    git:
-      url: https://github.com/Henry-Hiles/flutter_chat_ui
-      path: packages/flutter_chat_ui
-  flutter_link_previewer:
-    git:
-      url: https://github.com/Henry-Hiles/flutter_chat_ui
-      path: packages/flutter_link_previewer
+  flutter_chat_ui: ^2.11.1
+  flutter_link_previewer: ^4.2.0
   color_hash: ^1.0.1
   flutter_widget_from_html_core: ^0.17.0
   flutter_svg: ^2.2.2