New opendream pragmas (#20260)

Enabled new opendream pragmas
Fixed some runtime access check operators (`:`) around the codebase (not
all, some are unfixable as they're used in macros)

No player facing changes (hopefully)

code/modules/admin/verbs/modifyvariables.dm

@@ -584,7 +584,7 @@ var/list/VVdynamic_lock = list(
 	if (!istype(O, /atom))
 		original_name = "[REF(O)] ([O])"
 	else
-		original_name = O:name
+		original_name = O.name
 
 	if(holder.marked_datum && class == "marked datum ([holder.marked_datum.type])")
 		class = "marked datum"