fix(ui): fix MessageWidget.widthFactor not working on web/desktop.

Signed-off-by: xsahil03x <[email protected]>

packages/stream_chat_flutter/lib/src/message_widget/message_card.dart

@@ -188,9 +188,7 @@ class _MessageCardState extends State<MessageCard> {
                 attachmentPadding: widget.attachmentPadding,
               ),
             if (!widget.isGiphy)
-              ConstrainedBox(
-                constraints: BoxConstraints.loose(const Size.fromWidth(500)),
-                child: TextBubble(
+              TextBubble(
                 messageTheme: widget.messageTheme,
                 message: widget.message,
                 textPadding: widget.textPadding,
@@ -201,7 +199,6 @@ class _MessageCardState extends State<MessageCard> {
                 onLinkTap: widget.onLinkTap,
                 onMentionTap: widget.onMentionTap,
               ),
-              ),
             if (widget.hasUrlAttachments && !widget.hasQuotedMessage)
               _buildUrlAttachment(),
           ],