Add Transcription Tag to Bill Search

## Problem

In the Browse Bills search, we want to let users know which bills have relevant Hearings + Transcriptions available.

To that end, we should add a small tag to any search hits for bills that have a relevant Hearing + Transcription available . This might require a little back-end work to make this status known to the bill search index.

This is dependent on the base Hearing Detail page work in https://github.com/codeforboston/maple/issues/1874

## Success Criteria
- [ ] Add tag to Bill search results indicating that a relevant hearing + transcription is available for a bill (if one is available) - matching the attached design doc

## Additional Links
- Design Doc: https://www.figma.com/design/nQBq3MSm4WHorHq5GlkAr9/Transcriptions---Video-Hearings?node-id=1035-2310&t=QIrQNuyiz4RyOqlf-0