Generalise attack tooltips after D2092/rP22754.
This allows attacks with both capture and damage effects to show both, and centralises display between regular attack and Splash.
It also reverts a change from r14954 which incorrectly switched 'Interval' and 'Rate'.
Patch By: Freagarach
Reviewed By: wraitii
Differential Revision: https://code.wildfiregames.com/D2138