feat: added region color customization feature

src/components/common/index.ts

@@ -1,4 +1,5 @@
 export { default as KGDropdown } from './KGDropdown';
+export { default as ColorPalettePopup } from './ColorPalettePopup';
 export { default as Playhead } from './Playhead';
 export { default as FileImportModal } from './FileImportModal'; 
 export { default as LoadingOverlay } from './LoadingOverlay';