Replace panel tileKey with a direct color prop.

Drop theme panelTiles keys and the ArticleView update callback wiring.

src/components/article/boxes/ArticleViewEANs.jsx

@@ -105,6 +105,7 @@ export default class ArticleViewEANs extends Component {
       <EditablePanelTile
         wide={1}
         minHeight={SECOND_ROW_MIN_HEIGHT}
+        color="#e2e8f0"
         contentAlignItems="flex-start"
         value={value}
         onSave={this.handleSave}