WIP: Resolve "i18n linters - ESLint Vue"

What does this MR do?

• Configure vue-i18n for gitlab
  • Allow configurable externalization function
  • Create no-bare-strings rule for vue-i18n
  • Update vue-i18n to support .po/.pot files
  • Add autofixing capability
  • Test plugin on gitlab
• Lint gitlab
  • #63457 (closed) Autofix gitlab repo
  • #63458 (moved) Log issues for non-autofixable lints
• #63560 (closed) Integrate vue-i18n plugin into gitlab
  • Publish eslint-plugin-vue-i18n
  • https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/31124/diffs?commit_id=d46af03ef3eacbeb858e4fde67cb4e4bf8412811 Apply to master
  • https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/31124/diffs?commit_id=f418214deccbdd9178c5582156a378cde2a94def eslint-disable all the outstanding lint errors that were not autofixed

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Performance and testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team

Closes #57969 (moved)