Yes I was trying to find a CSS fix with missplaced pencil icon on label hover, but your fix does not solve the problem sadly. it's the img#translate_edit_icon position which is calculated in JS and bugs out. If you look for it in inspector you'll see the inline styles with top and left coordinates which are wrong. It's a bug. Maybe we're using different versions? I have the latest one
--UPDATE
ok I kinda solved it but you can't translate the backend panel. WMPL scan finds only 2 strings in the plugin. While on Booknetic website it clearly states that plugin is WPML ready. This BS is getting kinda boring tbh.
Imagine paying for this before trying.