add export for sqlite3_web

Author: stevensJourney

lib/sqlite3_web.dart

@@ -0,0 +1,5 @@
+/// Re-exports [sqlite3_web](https://pub.dev/packages/sqlite3_web) to expose sqlite3_web without
+/// adding it as a direct dependency.
+library;
+
+export 'package:sqlite3_web/sqlite3_web.dart';