[stable-3.6] use new public API to open an edit locally URL

[backportbot-nextcloud]

backport of #5116

[codecov]

Codecov Report

Merging #5117 (1b62b01) into stable-3.6 (a1c565a) will decrease coverage by 0.01%.
The diff coverage is n/a.

❗ Current head 1b62b01 differs from pull request most recent head fe5909d. Consider uploading reports for the commit fe5909d to get more accurate results

Additional details and impacted files

@@              Coverage Diff               @@
##           stable-3.6    #5117      +/-   ##
==============================================
- Coverage       57.18%   57.17%   -0.02%     
==============================================
  Files             138      138              
  Lines           17187    17187              
==============================================
- Hits             9828     9826       -2     
- Misses           7359     7361       +2     

Impacted Files	Coverage Δ
src/libsync/vfs/cfapi/cfapiwrapper.cpp	74.20% <0.00%> (-0.46%)	⬇️

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[nextcloud-desktop-bot]

AppImage file: nextcloud-PR-5117-fe5909d5e4628d9d327f4dc8b1e54c021917b4b5-x86_64.AppImage

To test this change/fix you can simply download above AppImage file and test it.

Please make sure to quit your existing Nextcloud app and backup your data.