Quick batch of fixes from over the weekend:

- fixed global chat window disappearing shortly after game launches

- fixed chat contents disappearing when switching tabs

- fixed Trinity's Link ability targeting her own sentinel

- fixed certain item rewards not being added to player's inventory after completing Endless Defense missions

- added visual FX to nearby mods to help improve visibility

- temporarily disabled Nervo enemy type pending tuning/re-balance pass

- additional fixes for enemies becoming stuck/unreachable during Endless Defense missions