Choose cursor aim with /aero controls instead of a keybind

/aero controls keyboard|cursor_aim is open to every player, stored per player
and synced to the client, which switches on automatically when seated.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YVREx3uo7nz1FEhzveWTUh

src/main/resources/assets/improved_aerodynamics/lang/de_de.json

@@ -23,7 +23,6 @@
   "message.improved_aerodynamics.afterburner.throttle": "Der Nachbrenner braucht mindestens Schub %s",
   "message.improved_aerodynamics.afterburner.no_seat": "Setz dich in einen Warium-Steuersitz, um den Nachbrenner zu nutzen",
   "message.improved_aerodynamics.afterburner.no_node": "Dieser Sitz ist mit keinem Vehicle Control Node verbunden",
-  "key.improved_aerodynamics.toggle_cursor_aim": "Cursor-Steuerung umschalten",
   "key.improved_aerodynamics.cursor_aim_free_look": "Cursor-Steuerung: Freie Sicht (halten)",
   "message.improved_aerodynamics.cursor_aim.on": "Cursor-Steuerung an",
   "message.improved_aerodynamics.cursor_aim.off": "Cursor-Steuerung aus",

src/main/resources/assets/improved_aerodynamics/lang/en_us.json

@@ -23,7 +23,6 @@
   "message.improved_aerodynamics.afterburner.throttle": "The afterburner needs a throttle of at least %s",
   "message.improved_aerodynamics.afterburner.no_seat": "Sit in a Warium control seat to use the afterburner",
   "message.improved_aerodynamics.afterburner.no_node": "This seat is not linked to a vehicle control node",
-  "key.improved_aerodynamics.toggle_cursor_aim": "Toggle cursor aim",
   "key.improved_aerodynamics.cursor_aim_free_look": "Cursor aim: free look (hold)",
   "message.improved_aerodynamics.cursor_aim.on": "Cursor aim on",
   "message.improved_aerodynamics.cursor_aim.off": "Cursor aim off",