chore: Follow up imagebubble

lib/pages/chat/events/image_bubble.dart

@@ -15,8 +15,8 @@ class ImageBubble extends StatelessWidget {
   final Color? backgroundColor;
   final bool thumbnailOnly;
   final bool animated;
-  final double? width;
+  final double width;
-  final double? height;
+  final double height;
   final void Function()? onTap;
   final BorderRadius? borderRadius;
 
@@ -45,8 +45,8 @@ class ImageBubble extends StatelessWidget {
       height: height,
       child: BlurHash(
         hash: blurHashString,
-        decodingWidth: width?.round() ?? 64,
+        decodingWidth: width.round(),
-        decodingHeight: height?.round() ?? 64,
+        decodingHeight: height.round(),
         imageFit: fit,
       ),
     );
@@ -83,13 +83,6 @@ class ImageBubble extends StatelessWidget {
         borderRadius: borderRadius,
         child: Hero(
           tag: event.eventId,
-          child: ConstrainedBox(
-            constraints: maxSize
-                ? BoxConstraints(
-                    maxWidth: width ?? double.infinity,
-                    maxHeight: height ?? double.infinity,
-                  )
-                : const BoxConstraints.expand(),
           child: MxcImage(
             event: event,
             width: width,
@@ -101,7 +94,6 @@ class ImageBubble extends StatelessWidget {
           ),
         ),
       ),
-      ),
     );
   }
 }