Fix image/video slight overflow error

lib/controls/media_attachment_viewer_control.dart

@@ -30,6 +30,8 @@ class _MediaAttachmentViewerControlState
   @override
   Widget build(BuildContext context) {
     final item = widget.attachments[widget.index];
+    final width = widget.width! * 0.9;
+    final height = widget.height;
     openMediaScreenCallback() {
       Navigator.push(context, MaterialPageRoute(builder: (context) {
         return MediaViewerScreen(
@@ -42,8 +44,8 @@ class _MediaAttachmentViewerControlState
     if (item.explicitType == AttachmentMediaType.video) {
       return AVControl(
         videoUrl: item.uri.toString(),
-        width: widget.width,
-        height: widget.height,
+        width: width,
+        height: height,
         description: item.description,
         onGoFullScreen: openMediaScreenCallback,
       );
@@ -53,8 +55,8 @@ class _MediaAttachmentViewerControlState
     }
 
     return ImageControl(
-      width: widget.width,
-      height: widget.height,
+      width: width,
+      height: height,
       imageUrl: item.thumbnailUri.toString(),
       altText: item.description,
       onTap: openMediaScreenCallback,