Fix MacOS UTF-8 normalization issue

[xavi-b]

trafficstars

Fix https://github.com/nextcloud/desktop/issues/4950

[nextcloud-desktop-bot]

AppImage file: nextcloud-PR-4957-5057fd94ae01fa35e2deb98b2261bd93071719d6-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.

[codecov[bot]]

Codecov Report

Merging #4957 (5057fd9) into master (38ae92b) will decrease coverage by 2.17%. The diff coverage is 100.00%.

:exclamation: Current head 5057fd9 differs from pull request most recent head 5113802. Consider uploading reports for the commit 5113802 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4957      +/-   ##
==========================================
- Coverage   59.28%   57.12%   -2.17%     
==========================================
  Files         143      138       -5     
  Lines       18445    17234    -1211     
==========================================
- Hits        10936     9845    -1091     
+ Misses       7509     7389     -120     

Impacted Files	Coverage Δ
src/common/syncjournaldb.cpp	77.45% <100.00%> (-1.24%)	:arrow_down:

... and 78 files with indirect coverage changes

[mgallien]

@xavi-b thanks for your contribution

why do even need to use such a phash column with possibilities for troubles when we can just use the path column ? I would rather remove the use for the phash column rather than trying to make it more robust just in case we can identify some of the problems of using it

[nextcloud-desktop-bot]

AppImage file: nextcloud-PR-4957-5113802daf38afdf5934fcd210e74513b22decd8-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.

[claucambra]

/backport to stable-3.8