Pull Request resolves #46912 .

• [✓ ] I read the Generative AI policy and my contribution is either not created with the help of AI or is compatible with the policy and GNU/GPL 2 or later.

Summary of Changes

This PR fixes an inconsistency where language overrides were not applied to custom field and filed group titles in the adminstrator list view.

When the field or field group titles was stored as a language constant (eg:- 'CUSTOM_FIELD_TEST_TITLE') and also language override existed. In the administrator Fields and Field Groups list views, the raw constant was rendered instead of translated text.

Testing Instructions

1. Go to Adminstrator - Content - Fields.
2. create a new custom field, set the title to a language constant, e.g- 'CUSTOM_FIELD_TEST_TITLE' .
3. Then go to Adminstrator- system - manage- Language Overrides
4. Add a override: Constant : 'CUSTOM_FIELD_TEST_TITLE' and Text: 'My translated Title"
5. now (after the fix) Edit forms and Adminstrator Fields displays "My translated Title". (fixed)
6. Same for Field Groups

Actual result BEFORE applying this Pull Request

BEFORE: title was displayed instead of language constant

Expected result AFTER applying this Pull Request

AFTER: language overrides are applied successfully.

Link to documentations

• [ ✓] No documentation changes for guide.joomla.org needed
• [✓ ] No documentation changes for manual.joomla.org needed