feat(content-library): Basic setup for content library

[framitdavid]

Description

This PR introduces the initial setup for the Content Library, which is designed to standardize the handling of shared resources like code lists, images, and other assets across multiple React applications.

Changes in this PR:

• Initial implementation of ContentLibraryImpl:
  • Predefined pages (root, codeList) are set up but not designed.
  • Consumers can provide configuration for these pages through their API, which will be rendered using the getContentResourceLibrary() method.
  • The library is designed to be type-safe and reusable, ensuring consistency across projects.
  • The library has navigation in place technically and can navigate through query-params.

What's next:

• Navigation & Design:

  • The current setup does not include design of navigation. But the navigation code to be able to navigate is implemented.

• Action interfaces:

  • The library will need to define interfaces for key actions (add, delete, update) as callbacks to the consumer.
    • This will be done in a separate PR to keep the scope of changes manageable and focused.

Related Issue(s)

• #13343

Verification

• Your code builds clean without any errors or warnings
• Manual testing done (required)
• Relevant automated test added (if you find this hard, leave it and we'll help out)

Documentation

• User documentation is updated with a separate linked PR in altinn-studio-docs. (if applicable)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.38%. Comparing base (23bbdfe) to head (97f1048).
Report is 3 commits behind head on main.

Additional details and impacted files

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##             main   #13636      +/-   ##
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+ Coverage   94.36%   94.38%   +0.01%     
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  Files        1552     1560       +8     
  Lines       21117    21176      +59     
  Branches     2525     2529       +4     
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+ Hits        19927    19986      +59     
  Misses        946      946              
  Partials      244      244              

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[TomasEng]

Veldig fint skall for den nye pakken! Det er bare noen småting som jeg lurer på.