Detective Board UI update (#90591)

## About The Pull Request

I've updated the UI of the detective board to make it look more
detective-like. Also, it is not necessary to specify the name and
description of the evidence to be attached. If it is not specified,
these fields are taken from the item.



https://github.com/user-attachments/assets/51419478-5fa9-43d4-a903-992ab4f0c91d

(The detective smoked a cigar and is now coughing)

Before:

![old](https://github.com/user-attachments/assets/b900b488-8271-40df-ac7c-18b60c8f6bf5)
After:

![new](https://github.com/user-attachments/assets/6c9d19e7-d94b-4003-81b1-54d781fb62bc)

## Why It's Good For The Game

Better UI/UX

## Changelog

🆑 FeudeyTF
qol: Better UI/UX for detective's board
/🆑

code/game/objects/structures/detectiveboard.dm

@@ -52,12 +52,10 @@ MAPPING_DIRECTIONAL_HELPERS(/obj/structure/detectiveboard, 32)
 		attaching_evidence = TRUE
 		var/name = tgui_input_text(user, "Please enter the evidence name", "Detective's Board", max_length = MAX_NAME_LEN)
 		if(!name)
-			attaching_evidence = FALSE
-			return
+			name = item.name
 		var/desc = tgui_input_text(user, "Please enter the evidence description", "Detective's Board", max_length = MAX_DESC_LEN)
 		if(!desc)
-			attaching_evidence = FALSE
-			return
+			desc = item.desc
 
 		if(!user.transferItemToLoc(item, src))
 			attaching_evidence = FALSE