TF-3192 Update highlight style as design

core/lib/presentation/extensions/color_extension.dart

@@ -61,7 +61,6 @@ extension AppColor on Color {
   static const buttonActionToastWithActionColor = Color(0xFF7ADCF8);
   static const backgroundCountAttachment = Color(0x681C1C1C);
   static const bgStatusResultSearch = Color(0xFFF5F5F7);
-  static const bgWordSearch = Color(0x3D007AFF);
   static const colorNameEmail = Color(0xFF000000);
   static const colorContentEmail = Color(0xFF6D7885);
   static const colorTextButton = Color(0xFF007AFF);

lib/features/thread/presentation/mixin/base_email_item_tile.dart

@@ -96,7 +96,7 @@ mixin BaseEmailItemTile {
         styleWord: TextStyle(
           fontSize: 15,
           color: buildTextColorForReadEmail(email),
-          backgroundColor: AppColor.bgWordSearch,
+          backgroundColor: Colors.amberAccent[200],
           fontWeight: buildFontForReadEmail(email)
         )
       );
@@ -129,7 +129,7 @@ mixin BaseEmailItemTile {
         ),
         styleWord: TextStyle(
           fontSize: 13,
-          backgroundColor: AppColor.bgWordSearch,
+          backgroundColor: Colors.amberAccent[200],
           color: buildTextColorForReadEmail(email),
           fontWeight: buildFontForReadEmail(email)
         )
@@ -160,10 +160,10 @@ mixin BaseEmailItemTile {
           color: AppColor.colorContentEmail,
           fontWeight: FontWeight.normal
         ),
-        styleWord: const TextStyle(
+        styleWord: TextStyle(
           fontSize: 13,
           color: AppColor.colorContentEmail,
-          backgroundColor: AppColor.bgWordSearch
+          backgroundColor: Colors.amberAccent[200],
         )
       );
     } else {