Updates the health analyzer TGUI to be prettier (#22498)

This fixes a few minor bugs for non-handheld health analyzers, as well
as updating the UI for them to be prettier.
<img width="521" height="823" alt="image"
src="https://github.com/user-attachments/assets/f0c121f1-e84c-4615-b4c5-1ec1f6620222"
/>

code/game/objects/items/devices/scanners.dm

@@ -28,6 +28,11 @@ BREATH ANALYZER
 	src.LoadComponent(/datum/component/health_analyzer)
 	flick("[icon_state]-scan", src)
 
+/obj/item/healthanalyzer/mechanics_hints(mob/user, distance, is_adjacent)
+	. += ..()
+	. += "Health analyzers are faster at scanning people, the higher grade it is and the higher the anatomy skill of the user is."
+	. += "Clicking it in hand will pull up the last scan, if it has not been cleared."
+
 /obj/item/healthanalyzer/attack(mob/living/target_mob, mob/living/user, target_zone)
 	var/datum/component/health_analyzer/h_analyzer = src.GetComponent(/datum/component/health_analyzer)
 	if(!h_analyzer)