QoL update for Airship Destruction and Simulation Battle instances

Suggestions
1

Imported from legacy Flarum.
Original author: penghaw (Flarum #226)

  • Warper to said instances
  • Show cooldown for said instances when using @cd or @cooldown
  • Instance Quest in Main Office for said instances
2

Imported from legacy Flarum.
Original author: Mad (Flarum #177)

where is it ?