fix(files): Remove obsolete loading code from old API, add public shared id to enabled view

[JuliaKirschenheuter]

Remove obsolete loading code from old API, add public shared id to enabled view

• Resolves: Readme not shown as folder description on public share links #7088

🖼️ Screenshots

🏚️ Before	🏡 After

🏁 Checklist

• Code is properly formatted (npm run lint / npm run stylelint / composer run cs:check)
• Sign-off message is added to all commits
• Tests (unit, integration and/or end-to-end) passing and the changes are covered with tests
• Documentation (README or documentation) has been updated or is not required

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 58.75%. Comparing base (95160cd) to head (42093ca).
Report is 40 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7157      +/-   ##
==========================================
+ Coverage   51.83%   58.75%   +6.92%     
==========================================
  Files         479      478       -1     
  Lines       41488    36555    -4933     
  Branches     1002     1001       -1     
==========================================
- Hits        21504    21477      -27     
+ Misses      19879    14973    -4906     
  Partials      105      105              

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[szaimen]

/backport to stable31

[juliusknorr]

/backport to stable31

[horvathcsabalaszlo]

Thanks :)

[skjnldsv]

/backport to stable31