ai: mention dbp-icon

Signed-off-by: Patrizio Bekerle <patrizio@bekerle.com>

Author: pbek

AGENTS.md

@@ -4,4 +4,5 @@
 
 - Only use English variables and comments in the code.
 - Always write clear and concise comments for complex logic, start comments with uppercase letters.
-- Don't try to open the webpage, the page is behind a SSO login, so you won't be able to access it.
+- Don't try to open the webpage, the page is behind an SSO login, so you won't be able to access it.
+- If you can use existing dbp-icons, use them instead of creating new icons.