Add TODO comment.

Author: lukeelmers

x-pack/legacy/plugins/canvas/server/lib/build_embeddable_filters.ts

@@ -7,6 +7,11 @@
 import { Filter } from '../../types';
 // @ts-ignore Untyped Local
 import { buildBoolArray } from './build_bool_array';
+
+// TODO: We should be importing from `data/server` below instead of `data/common`, but
+// need to keep `data/common` since the contents of this file are currently imported
+// by the browser. This file should probably be refactored so that the pieces required
+// on the client live in a `public` directory instead. See kibana/issues/52343
 // eslint-disable-next-line @kbn/eslint/no-restricted-paths
 import { TimeRange, esFilters } from '../../../../../../src/plugins/data/common';