Option to show fallback data within the UI

[jessrynkar]

Description

Introduce a localization option to enable displaying fallback field values in the admin UI list views and relationship dropdowns.

Currently, when fallback enabled, the API correctly returns fallback data, but the UI list views show <No Title> for fields that rely on fallback.

This makes finding and editing documents difficult and breaks search functionality in relationship dropdowns.

Details

• Add an option to enable fallback value display in the UI.
• Ensure search queries account for fallback values, allowing results to appear even if the requested locale lacks a direct value.

ETA

TBD

Background

Original discussion here.