Small first patch

Fixed crash bug from teleporters due to bread.
Fixed a bug where health values are inconsistent on bots when tf_mvmvs_use_loadout is set to 0.
Added tf_robot_cosmetic_opt_in to allow hiding robot cosmetics on players.
Added cl_clear_chat_on_disconnect to clear chat on disconnecting from a server.
Added both of these ConVars to the advanced options menu.
Fixed some bot definitions in robot_standard.txt. Fixed the Attributes key being non-functional.
Removed offensive discord RPC message (dev joke lol).

Added 3 new tf_mvm_arena_first_blood convars, to adjust the durations.

Horseless Headless Horsemann changes

now respects members or entities on same team as him.
Restored Hurt sound on Critical hits
Monoculus has a new Input "Enrage" using the value as duration for how long he stays mad.