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/reagents/reagent_containers/pill.dm

@@ -72,9 +72,8 @@
 		to_chat(user, "<span class='warning'>[target] is full.</span>")
 		return
 
-	to_chat(user, "<span class='notice'>You dissolve [src] in [target].</span>")
-	for(var/mob/O in viewers(2, user))	//viewers is necessary here because of the small radius
-		to_chat(O, "<span class='warning'>[user] slips something into [target]!</span>")
+	user.visible_message("<span class='warning'>[user] slips something into [target]!</span>",
+						"<span class='notice'>You dissolve [src] in [target].</span>", vision_distance = 2)
 	reagents.trans_to(target, reagents.total_volume)
 	qdel(src)