[FC-0059] UI fixes on create content

[ChrisChV]

Description

This PR adds:

• Hide the "New" button on the read-only state of a library.
• Hide the "Add component" buttons on the read-only state of a library.
• Add "Read only" badge on the read-only state of a library.

Supporting information

• Github Issue: Library Home - Create Content #1040
• Internal ticket: FAL-3754

Testing instructions

• Go to Studio and create a new library
• Enable public read of the library in cms bash:

from openedx.core.djangoapps.content_libraries.models import ContentLibrary
lib = ContentLibrary.objects.all()[0]
lib.allow_public_read = True
lib.save()

• Create and login with a new normal user (not staff).
• Go to the library home using the id of your new library
• Verify that the New button is hidden.
• Verify that all Add component buttons in empty states are hidden.
• Verify that you can see the "Read only" badge.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.91%. Comparing base (cba85ab) to head (79154a4).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1198      +/-   ##
==========================================
+ Coverage   92.88%   92.91%   +0.02%     
==========================================
  Files         750      750              
  Lines       13468    13488      +20     
  Branches     2930     2884      -46     
==========================================
+ Hits        12510    12532      +22     
+ Misses        923      921       -2     
  Partials       35       35              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[bradenmacdonald]

Suggested change

	<Stack direction="horizontal" gap={3} className="mt-6 just ify-content-center">
	<Stack direction="horizontal" gap={3} className="mt-6 justify-content-center">

[ChrisChV]

Ohh, It's my keyboard's fault 😆

Fixed: 79154a4

[ChrisChV]

@bradenmacdonald It's ready for another review

[bradenmacdonald]

Thanks!

[bradenmacdonald]

👍

• I tested this: as described
• I read through the code
• I checked for accessibility issues
• Includes documentation

[openedx-webhooks]

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