AO3-7150 Search by title or name in Autocomplete for Parent Collection

[ayasayadi1]

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Issue

https://otwarchive.atlassian.net/browse/AO3-7150

Purpose

This PR fixes parent collection autocomplete when creating a subcollection by:

• Searching both name and title (previously, typing a collection's title returned no results)
• Displaying the suggestions as "Title (name)" since collection titles are not unique

Credit

Aya Sayadi