Field of Vision component. (#12075)

* Hopeless WIP for vision cones.

* Core component and hooks done

* Removing clutter.

* linter bashing me for using statements as args.

* Ok.

* continue

* bring back the macro

* Configs and openspace filter.

* Chat plane, reset perspective signal, mechs/vehicles cases, machineries.

* view, viewers and spoopy ghosts.

* Renamed component, admin fun button and snowflakes robots.

* Whoopsie.

* Yikes

* test merge tweak.

* radial yaketi sax.

* Fixed tgui UIs, some messages not displayed to the target.

* Documentation and a little bugfix.

* Pulling QoL, seventh plane made in this PR.

* Fix.

* Tweaks and improvements.

* Update randomverbs.dm

code/modules/tgui/states.dm

@@ -99,7 +99,7 @@
   * return UI_state The state of the UI.
  **/
 /mob/living/proc/shared_living_ui_distance(atom/movable/src_object)
-	if(!(src_object in view(src))) // If the object is obscured, close it.
+	if(!(src_object in visible_atoms())) // If the object is obscured, close it.
 		return UI_CLOSE
 
 	var/dist = get_dist(src_object, src)