Separates actions.dmi into multiple files (#29587)

actions.dmi is way too cluttered and messy, and with inhands getting the axe I decided to fix this, too. I separated the major categories of actions into their own files, like antagonist-specific actions and spells. A full list of categories is found here:

    actions_AI.dmi contains AI-specific actions;
    actions_clockcult.dmi contains clockcult-specific actions, and scripture quickbind icons;
    actions_cult.dmi contains cult-specific actions as well as sintouch;
    actions_flightsuit.dmi contains flightsuit and flightpack actions;
    actions_items.dmi contains minor item-specific actions such as the hierophant club and jetboots;
    actions_mecha.dmi contains actions related to mechs;
    actions_minor_antag.dmi contains antag-related actions with no other spot, like devils/abductors;
    actions_revenant.dmi contains revenant ability icons;
    actions_silicon.dmi contains minor silicon and console icons, like pAI and xenobiology consoles;
    actions_slime.dmi contains slime actions;
    actions_spells.dmi contains icons for all spells;
    actions_xeno.dmi contains icons for all xeno actions; and
    backgrounds.dmi contains backgrounds for the action buttons.

code/modules/mining/aux_base_camera.dm

@@ -128,6 +128,7 @@
 	eyeobj.invisibility = INVISIBILITY_MAXIMUM //Hide the eye when not in use.
 
 /datum/action/innate/aux_base //Parent aux base action
+	icon_icon = 'icons/mob/actions/actions_construction.dmi'
 	var/mob/living/C //Mob using the action
 	var/mob/camera/aiEye/remote/base_construction/remote_eye //Console's eye mob
 	var/obj/machinery/computer/camera_advanced/base_construction/B //Console itself