feat(llc, ui): add support for thumbUrl in video attachment. (#1362)

* feat(llc, ui): add support for thumbUrl in file attachment.

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

* chore(ui): use widget.fit instead of hardcoded fit.

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

* fix analysis

Signed-off-by: xsahil03x <[email protected]>
Co-authored-by: Salvatore Giordano <[email protected]>

packages/stream_chat_flutter/lib/src/attachment/file_attachment.dart

@@ -195,7 +195,6 @@ class _FileTypeImage extends StatelessWidget {
         shape: _getDefaultShape(context),
         child: source.when(
           local: () => StreamVideoThumbnailImage(
-            fit: BoxFit.cover,
             video: attachment.file!.path!,
             placeholderBuilder: (_) => const Center(
               child: SizedBox(
@@ -206,7 +205,6 @@ class _FileTypeImage extends StatelessWidget {
             ),
           ),
           network: () => StreamVideoThumbnailImage(
-            fit: BoxFit.cover,
             video: attachment.assetUrl!,
             placeholderBuilder: (_) => const Center(
               child: SizedBox(