Do not show retweet button if post is followers-only or a DM
requested to merge Toromino/pleroma-fe:fix/remove-retweet-button-on-private-and-direct-posts into develop
Pleroma-fe currently shows the 'retweet' button even if the post's visibility is followers-only or a direct message. This MR removes the button, if the post is private or a DM.