Disable Turbo Prefetch in Admin

[sascha-karnatz]

What is this pull request for?

This feature was enabled by default in Turbo 8 and can cause that many "locked pages" appear, if the user is hovering over page entries in page tree.

Checklist

• [x] I have followed Pull Request guidelines
• [x] I have added a detailed description into each commit message
• [ ] I have added tests to cover this change

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 95.96%. Comparing base (4774203) to head (090f56d).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2944 +/- ## ======================================= Coverage 95.96% 95.96% ======================================= Files 232 232 Lines 6272 6272 ======================================= Hits 6019 6019 Misses 253 253 ```

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[alchemycms-bot]

💔 All backports failed

Status	Branch	Result
❌	7.2-stable	Backport failed because of merge conflicts

Manual backport

To create the backport manually run:

backport --pr 2944

Questions ?

Please refer to the Backport tool documentation and see the Github Action logs for details

[tvdeyen]

💚 All backports created successfully

Status	Branch	Result
✅	7.2-stable

Questions ?

Please refer to the Backport tool documentation