refactors clickcatchers/parallax/fullsceren (#15460)

* :)

* that

* move those there

* refactor that too

* wew

* stuff

* almost.

* sigh

* just need speed

* stuf

* pain

* hm

* tweaks

* that

* eh

* wack

* a

* done

* that's important

* wacky

* all that

* fixes

* typo

* that

* a

* funny

* that

* that

* woo

* help im losing my fucking mind

* okay

* fix

code/_onclick/observer.dm

@@ -11,7 +11,6 @@
 	// Otherwise jump
 	else if(A.loc)
 		forceMove(get_turf(A))
-		update_parallax_contents()
 
 /mob/dead/observer/ClickOn(var/atom/A, var/params)
 	if(check_click_intercept(params,A))