chore(theme-shared): add handler export to public-api

npm/ng-packs/packages/theme-shared/src/public-api.ts

@@ -6,6 +6,7 @@ export * from './lib/theme-shared.module';
 export * from './lib/animations';
 export * from './lib/components';
 export * from './lib/directives';
+export * from './lib/handlers';
 export * from './lib/models';
 export * from './lib/services';
 export * from './lib/tokens';