[loc] Localize links on translation and rollout

As an author, I would like to have localized links so that I am delivering localized links on delivery without any client-side manipulation.

## Context
~While any author can put in localized links, this causes a problem for regional edit diffing~. Because the links are considered different, the block is marked as different.

## Criteria of acceptance
1. Translating and rolling out will translate the links based on some pattern
2. Respects `#_dnt` pattern

Start by tracing the translation and rollout flow and locating existing handling for the `#_dnt` pattern. Check how link URLs affect regional edit diffing, then verify that pattern-based localization produces localized links without changing links marked `#_dnt`.

Written by the indexing model from the issue text.