Fix away site radios, AI/borg radios, shell access (#15273)

code/modules/mob/living/say.dm

@@ -302,6 +302,9 @@ proc/get_radio_key_from_channel(var/channel)
 
 	var/list/hear_clients = list()
 	for(var/mob/M in listening)
+		if((M.client || (M.vr_mob && M.vr_mob.client)) && ((M.client in hear_clients) || (M.vr_mob?.client in hear_clients)))
+			listening -= M
+			continue // people don't need to double-hear stuff
 		var/heard_say = M.hear_say(message, verb, speaking, alt_name, italics, src, speech_sound, sound_vol, get_font_size_modifier())
 		if(heard_say && M.client)
 			hear_clients += M.client

code/modules/mob/living/silicon/ai/ai_remote_control.dm

@@ -21,6 +21,7 @@
 					)
 
 	sprites = list("Basic" = list(ROBOT_CHASSIS = "shell", ROBOT_PANEL = "shell", ROBOT_EYES = "shell"))
+	all_access = TRUE
 
 /obj/item/robot_module/aicontrol/Initialize()
 	. = ..()
@@ -60,4 +61,3 @@
 /obj/item/crowbar/robotic/jawsoflife/attack(mob/living/carbon/M, mob/living/carbon/user)
 	user.visible_message("\The [user] [pick("boops", "squeezes", "pokes", "prods", "strokes", "bonks")] \the [M] with \the [src]")
 	return FALSE
-