Playground: Correct the link to the Hive WASM issue

Author: rydmike

example/lib/shared/services/theme_service_hive.dart

@@ -115,7 +115,7 @@ class ThemeServiceHive implements ThemeService {
  }
  // Add workaround for hive WASM returning double instead of int, when
  // values saved were int.
- // See issue: https://github.com/lamnhan066/hive/issues/2
+ // See issue: https://github.com/IO-Design-Team/hive_ce/issues/46
  if (App.isRunningWithWasm &&
  gotValue != null &&
  (gotValue is double) &&