Feat: add "yes all" option to overwrite style dialogs

[Totto16]

This adds a third option to all style dialogs, that when clicked overwrite all conflicts.

This is really helpful, since sometimes you update styles in sub files, and then you have to click multiple times "Yes", but a "Yes, all" option is present in many programs / dialogs (e.g. file move / copy dialogs) in many ways.

This PR needs some changes to the translation too, but that are some rather big changes in all .po files, and if I run make_pot.sh it really scrambles things around, which is really frustrating, since the actual changes are not that visible (it should remove three strings and add 4 new ones). So I'll need help on how to approach that. 😄

Feel free to leave comments on the feature / the implementation of it 😄

Here a screenshot of the new Feature (in german, that I already did here as this current version crashes locally, for an unrelated reason 😄 )