Adding permission validations from authz for files page

[jacobo-dominguez-wgu]

Description

This pr adds authz permission validations for the files page section on the Content menu from the header.
First this validates the enableAuthzCourseAuthoring waffle flag and if it is enabled it checks the permissions from authz on the files page section.
These are the checks included:

Checks for the courses.view_files permission to display or hide the Files option on the header menu. Also renders a permissions denied alert if used a direct link to the files section.
Checks for courses.create_files to display or hide the "+ Add files" button and the add files drop zone.
Checks for courses.delete_files permission to display or hide the Delete menu option on the actions menu and the options menu in card view and list view.
Checks for courses.edit_files to display or hide the Lock/Unlock item on the info section and in the options menu in card view and list view.

Resolves #2934

Useful information to include:

• Backend ticket Task - RBAC AuthZ - Implement new permissions for files openedx-authz#193

Supporting information

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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, @jacobo-dominguez-wgu!

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[codecov]

Codecov Report

❌ Patch coverage is 86.44068% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 95.50%. Comparing base (24e1c73) to head (d9d6a90).
⚠️ Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
...components/table-custom-columns/MoreInfoColumn.jsx	50.00%	5 Missing ⚠️
...les-and-videos/files-page/FileInfoModalSidebar.jsx	0.00%	1 Missing ⚠️
src/files-and-videos/generic/FileMenu.jsx	83.33%	1 Missing ⚠️
...nd-videos/generic/table-components/GalleryCard.jsx	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2941      +/-   ##
==========================================
- Coverage   95.51%   95.50%   -0.01%     
==========================================
  Files        1329     1331       +2     
  Lines       30557    30606      +49     
  Branches     6925     6952      +27     
==========================================
+ Hits        29186    29231      +45     
- Misses       1303     1307       +4     
  Partials       68       68              

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