Legendary Actions section header

[Aioros]

Originally posted at Aioros/MonsterBlocks#5 by @Berlinia:

Overall, after a variety of tests most stuff works, except specifically legendary action name, due to the changes in 4.2.

If I'm not mistaken, the new translation key for that after 4.2 is DND5E.NPC.SECTIONS.LegendaryActions, but that would not work on older versions.

[Aioros]

I'll mention here for @zeel01 that we are already doing something similar for another translation string (the old DND5E.Source) in getData() in MonsterBlock5e.js. If you like that approach, this one could be added in the same place.

[zeel01]

If it's easy to fix in a way that still works in both versions I'm all for it, but I'm also perfectly fine with just updating the string to the new one. At the moment maintaining backward compatibility is low priority in my opinion, but I'll leave it to whoever implements the fix to decide how much effort they want to put into it.