Add IDE project icon (#4877)

Task/Issue URL:
https://app.asana.com/0/488551667048375/1207996888859865/f

### Description

The DDG project was missing an icon for IntelliJ/AS. If I don’t see an
icon how will I ever know what this project is? 🌚

### Steps to test this PR

- [x] Checkout branch 
- [x] Check there’s an icon in the top left of the IDE

### UI changes
| Before  | After |
| ------ | ----- |
<img width="187" alt="Screenshot 2024-08-08 at 13 29 37"
src="https://github.com/user-attachments/assets/b38cb6c2-4d13-409c-8a3f-3b335a6048fe">|<img
width="182" alt="Screenshot 2024-08-08 at 13 26 03"
src="https://github.com/user-attachments/assets/cae6e024-4c55-4b1d-a621-d7d09ff31bf0">

Author: mikescamell

.gitignore

@@ -43,6 +43,7 @@ captures/
 *.iml
 .idea/
 .idea/workspace.xml
+!.idea/icon.svg
 
 # Keystore files
 *.jks