Hi,
What code did you try to put and where so it doesn’t work for you? Could you please describe how are you trying to do this so we can understand why it doesn’t work?
As for product thumbnails, on our demo it has such effect because thumbnails images are taller. Try to increase their height in WooCommerce -> Settings -> Products -> Display.
You can translate all theme and plugin texts via PO file in WordPress. Here is a video tutorial that should help you translate your website texts with a Loco Translate plugin https://www.youtube.com/watch?v=D3NsDdMzsls&list=PLMw6W4rAaOgKKv0oexGHzpWBg1imvrval&index=3
Regards