fix regression with weird status expand animation

app/src/main/java/com/keylesspalace/tusky/adapter/StatusBaseViewHolder.java

@@ -186,6 +186,7 @@ public abstract class StatusBaseViewHolder extends RecyclerView.ViewHolder {
             contentWarningButton.setVisibility(View.VISIBLE);
             contentWarningButton.setChecked(expanded);
             contentWarningButton.setOnCheckedChangeListener((buttonView, isChecked) -> {
+                contentWarningDescription.invalidate();
                 if (getAdapterPosition() != RecyclerView.NO_POSITION) {
                     listener.onExpandedChange(isChecked, getAdapterPosition());
                 }