Minor bugfix for Druidic religion

Some bugfix spotted after play-testing the Druidic religion:
-  on_actions: overridden from vanilla, causing missing events during reformation, child of concubine trait on birth, battle events, etc. Had to merge the 2 files into 1 and add back the vanilla events.
- Localization: \n on tooltips causing line wrapping issue and few missing keys/typos
- Interface: fixed some trait paths, added vanilla icons for decisions without any.