New Language Icons for Legalese and Mushroom (#4742)

## About The Pull Request

Added the following icons to the Legalese and Mushroom languages:

<img width="160" height="160" alt="librapreview"
src="https://github.com/user-attachments/assets/1aadb364-5f56-4f04-8d2a-1bfa0d732640"
/>
<img width="160" height="160" alt="mushroompreview"
src="https://github.com/user-attachments/assets/7ebf267d-31ea-4e63-aad7-89b53faeb894"
/>


## Why It's Good For The Game

The languages lacked icons, and that looked a bit ugly. So I fixed that.

## Proof Of Testing

<img width="226" height="51" alt="immagine"
src="https://github.com/user-attachments/assets/492a2176-e908-45ea-8599-83a579fde00b"
/>


</details>

## Changelog

🆑
image: New Icons for the Legalese and Mushroom languages.
/🆑

code/modules/language/mushroom.dm

@@ -12,3 +12,8 @@
 	syllables = list("poof", "pff", "pFfF", "piff", "puff", "pooof", "pfffff", "piffpiff", "puffpuff", "poofpoof", "pifpafpofpuf")
 	default_name_syllable_min = 1
 	default_name_syllable_max = 2
+
+//Bubber Edit - Icon
+	icon_state = "mushroom"
+	icon = 'modular_zubbers/icons/misc/language.dmi'
+//Bubber Edit End