Add external links override support

[diana-villalvazo-wgu]

Description

Wrapped following links with getExternalLinkUrl function so it can be modified by config.

• 'https://www.edx.org/accessibility'
• 'https://docs.openedx.org/en/latest/educators/concepts/exercise_tools/about_multi_select.html'
• 'https://docs.openedx.org/en/latest/educators/how-tos/course_development/exercise_tools/add_multi_select.html'
• 'https://docs.openedx.org/en/latest/educators/how-tos/course_development/exercise_tools/add_dropdown.html'
• 'https://docs.openedx.org/en/latest/educators/how-tos/course_development/exercise_tools/manage_numerical_input_problem.html'
• 'https://docs.openedx.org/en/latest/educators/how-tos/course_development/exercise_tools/add_text_input.html'
• 'https://docs.openedx.org/en/latest/educators/how-tos/course_development/social_sharing.html'
• 'https://docs.openedx.org/en/latest/educators/references/course_development/exercise_tools/guide_problem_types.html#advanced-problem-types'
• 'https://edx.readthedocs.io/projects/open-edx-building-and-running-a-course/en/latest/developing_course/course_components.html#components-that-contain-other-components'
• 'https://openai.com/api-data-privacy'
• 'https://docs.openedx.org/en/latest/educators/how-tos/course_development/create_new_library.html'
• 'https://bigbluebutton.org/privacy-policy/'
• 'https://creativecommons.org/about'

Supporting information

Closes #2729
Link to other information about the change, such as GitHub issues, or Discourse discussions.
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Testing instructions

Best Practices Checklist

We're trying to move away from some deprecated patterns in this codebase. Please
check if your PR meets these recommendations before asking for a review:

• Any new files are using TypeScript (.ts, .tsx).
• Avoid propTypes and defaultProps in any new or modified code.
• Tests should use the helpers in src/testUtils.tsx (specifically initializeMocks)
• Do not add new fields to the Redux state/store. Use React Context to share state among multiple components.
• Use React Query to load data from REST APIs. See any apiHooks.ts in this repo for examples.
• All new i18n messages in messages.ts files have a description for translators to use.
• Avoid using ../ in import paths. To import from parent folders, use @src, e.g. import { initializeMocks } from '@src/testUtils'; instead of from '../../../../testUtils'

[openedx-webhooks]

Thanks for the pull request, @diana-villalvazo-wgu!

This repository is currently maintained by @bradenmacdonald.

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[bradenmacdonald]

Why aren't these URLs using the "help URL" API? We just did some refactoring of it in #2714 which is why I'm thinking about it, but it seems to be doing the exact same thing.

[diana-villalvazo-wgu]

Why aren't these URLs using the "help URL" API? We just did some refactoring of it in #2714 which is why I'm thinking about it, but it seems to be doing the exact same thing.

@bradenmacdonald Not sure about that, we didn't introduced those links, i just took the work to wrap hardcoded links with that new function. Coming from this thread: https://openedx.slack.com/archives/C04BM6YC7A6/p1764789053939589?thread_ts=1763672859.489199&cid=C04BM6YC7A6

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.86%. Comparing base (b76b003) to head (8785e30).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2730   +/-   ##
=======================================
  Coverage   94.86%   94.86%           
=======================================
  Files        1231     1231           
  Lines       27922    27926    +4     
  Branches     6332     6332           
=======================================
+ Hits        26487    26491    +4     
  Misses       1364     1364           
  Partials       71       71           

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