add link TextStyle for messages

lib/src/stream_chat_theme.dart

@@ -168,8 +168,8 @@ class StreamChatThemeData {
                   this.ownMessageTheme.messageText,
               messageAuthor: ownMessageTheme?.messageAuthor ??
                   this.ownMessageTheme.messageAuthor,
-              messageMention: ownMessageTheme?.messageMention ??
-                  this.ownMessageTheme.messageMention,
+              messageMention: ownMessageTheme?.messageLinks ??
+                  this.ownMessageTheme.messageLinks,
               createdAt:
                   ownMessageTheme?.createdAt ?? this.ownMessageTheme.createdAt,
               replies: ownMessageTheme?.replies ?? this.ownMessageTheme.replies,
@@ -184,8 +184,8 @@ class StreamChatThemeData {
                   this.otherMessageTheme.messageText,
               messageAuthor: otherMessageTheme?.messageAuthor ??
                   this.otherMessageTheme.messageAuthor,
-              messageMention: otherMessageTheme?.messageMention ??
-                  this.otherMessageTheme.messageMention,
+              messageMention: otherMessageTheme?.messageLinks ??
+                  this.otherMessageTheme.messageLinks,
               createdAt: otherMessageTheme?.createdAt ??
                   this.otherMessageTheme.createdAt,
               replies:
@@ -295,6 +295,9 @@ class StreamChatThemeData {
             width: 32,
           ),
         ),
+        messageLinks: TextStyle(
+          color: accentColor,
+        ),
       ),
       otherMessageTheme: MessageTheme(
         messageText: TextStyle(
@@ -399,7 +402,7 @@ class AvatarTheme {
 class MessageTheme {
   final TextStyle messageText;
   final TextStyle messageAuthor;
-  final TextStyle messageMention;
+  final TextStyle messageLinks;
   final TextStyle createdAt;
   final TextStyle replies;
   final Color messageBackgroundColor;
@@ -409,7 +412,7 @@ class MessageTheme {
     this.replies,
     this.messageText,
     this.messageAuthor,
-    this.messageMention,
+    this.messageLinks,
     this.messageBackgroundColor,
     this.avatarTheme,
     this.createdAt,
@@ -428,7 +431,7 @@ class MessageTheme {
       MessageTheme(
         messageText: messageText ?? this.messageText,
         messageAuthor: messageAuthor ?? this.messageAuthor,
-        messageMention: messageMention ?? this.messageMention,
+        messageLinks: messageMention ?? this.messageLinks,
         createdAt: createdAt ?? this.createdAt,
         messageBackgroundColor:
             messageBackgroundColor ?? this.messageBackgroundColor,