[pp-1] Deprecate remaining _ functions in locale

Problem/Motivation

Postponed on #3616277: Deprecate several locale functions

These will be the final underscore functions.

• _locale_refresh_translations
• _locale_refresh_configuration
• _locale_strip_quotes
• _locale_parse_js_file
• _locale_invalidate_js
• _locale_rebuild_js

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

Introduced terminology

API changes

Data model changes

Release notes snippet