Restore filled tablet camera preview

Signed-off-by: kenny lopez <klopez4212@gmail.com>

mobile/lib/features/channels/compose_bar/camera_preview.dart

@@ -177,21 +177,6 @@ class _CameraFeed extends StatelessWidget {
     final previewSize = controller.value.previewSize;
     if (previewSize == null) return const ColoredBox(color: Colors.black);
 
-    final isTablet = MediaQuery.sizeOf(context).shortestSide >= 600;
-
-    // The tablet workspace gives the composer a tall, bounded panel instead
-    // of the phone's wide attachment surface. Let CameraPreview retain the
-    // camera's reported ratio in that panel; forcing its rotated preview size
-    // through FittedBox here makes Android stretch the feed in a narrow pane.
-    if (isTablet) {
-      return Center(
-        child: AspectRatio(
-          aspectRatio: controller.value.aspectRatio,
-          child: camera.CameraPreview(controller),
-        ),
-      );
-    }
-
     return ClipRect(
       child: FittedBox(
         fit: BoxFit.cover,