fix: export PropertyTypeColors const

Author: marbemac

src/index.ts

@@ -1,4 +1,4 @@
-export { JsonSchemaViewer, SchemaRow, SchemaTree as SchemaTreeComponent } from './components';
+export { JsonSchemaViewer, SchemaRow, SchemaTree as SchemaTreeComponent, PropertyTypeColors } from './components';
 export * from './tree';
 export * from './types';
 export * from './utils';