[Explore]Change Dataset search can't get back to default list view after filtering

[Steejay]

Once a user inputs copy to filter the list of datasources, the list successfully filters dynamically but they can't get back to the default state that shows all datasets.

Expected results

Once the user deletes the input, the list should automatically show all datasets again.

Actual results

The user is stuck with their first filter input and can't redo their search/filter.

Screenshots

How to reproduce the bug

1. Go to 'Explore'
2. Click on the more icon next to the dataset name
3. Filter the list by typing a dataset name
4. Stuck (try to see the full list again).

[junlincc]

it's resolved already by chore: Show datasets when search input is empty
#12391
@Steejay thanks for filing this issue, still need to speed up a bit to catch up with the changes in the repo 😉

cc: @mihir174