<span> and cable use()

- Added more span tags
- using cable now uses use()
- fixed use() to correctly return 1 when it succeeds
- checked that there were no checks that would’ve been previously
borked. For testing purposes I renamed use to use_cable (‘use’ is kinda
bad for a proc name, but use_cable is hardly better), but left that out
of the commit because it would’ve inflated the pr.

code/modules/power/cable.dm

@@ -302,8 +302,8 @@
 	if(src.amount < used)
 		return 0
 	else if (src.amount == used)
-		//handle mob icon update
-		if(ismob(loc))
+		.=1 //Because del(src) stops the proc, set the default return value to 1
+		if(ismob(loc)) //handle mob icon update
 			var/mob/M = loc
 			M.u_equip(src)
 		del(src)