Package version (if known): 8.0.1

Describe the bug

Filtering via UI dropdown is not working. The FilteredSuggestQueryParser was deprecated, but on the UI, the query formation wasn't updated to follow the changes in backend.

Steps to Reproduce

1. Have at least 2 schemes registered via VocabularyScheme in your instance
2. Go to deposit form and select a scheme
3. See error, search is broken

Expected behavior

2 ways forward:

1. Scheme filtering should be added back something similar to the depecated FilteredSuggestQueryParser
   OR
2. We should remove scheme selection and update scheme field to have a text field with analyzers for autocomplete to work