Point Icon= at the app's own theme icon

Icon=cce-data-editor resolves to cce-icons' hicolor tree (installed by ccebuild)
instead of borrowing a generic freedesktop name that resolved only if
some other installed theme happened to provide it.

Co-Authored-By: Claude <[email protected]>

 cce-data-editor.desktop | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cce-data-editor.desktop b/cce-data-editor.desktop
index d2bcd68..4999dfa 100644
--- a/cce-data-editor.desktop
+++ b/cce-data-editor.desktop
@@ -3,7 +3,7 @@ Type=Application
 Name=Data Editor
 Comment=JSON data editor for clear-ui
 Exec=cce-data-editor %F
-Icon=preferences-system
+Icon=cce-data-editor
 Categories=Utility;Development;
 Terminal=false
 StartupNotify=true