`await Hive.openBox(BoxName, collection: DBName)` never returns on Web

**Steps to Reproduce**
Try to open box with `collection` arg passed into method.

**Code sample**
```
await Hive.openBox("boxName", collection: "collectionName")
```

**Version**
- Platform: Web
- Flutter version: 3.0.5
- Hive version: 2.2.3

Start by reproducing the Web case with await Hive.openBox("boxName", collection: "collectionName") and trace the openBox entry point, focusing on how the collection argument is handled. Done means opening the box returns normally on Web when collection is provided, with a regression check for the supplied example.

Written by the indexing model from the issue text.