fix(ci): add icons to git for CI builds

The tauri build requires icon files at compile time (generate_context! macro).
These were previously in .gitignore, causing CI builds to fail with
"failed to open icon" errors on all platforms.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: phodal

.gitignore

@@ -87,7 +87,8 @@ logs
 # pnpm-lock.yaml
 test-results
 .routa
-apps/desktop/src-tauri/icons/*
+apps/desktop/src-tauri/icons/android/
+apps/desktop/src-tauri/icons/ios/
 .next-desktop/
 
 # SQLite database files