Fix merge of upstream by merging again and replaying npm customizations (fix ci build in server project)

[thlehmann-ionos]

Merge tag 'v8.27.0' into fix-root-ci-build-1350

Upstream branch v8.27.0 merged into our most recent fork main-branch
with package-lock.json conflicts solved manually.

Determining the source version

https://github.com/nextcloud/server/blob/v31.0.7/package.json#L64

Showed version v8.27.0, so we'll use that tag.

Merge

Merge by:

git merge v8.27.0

This went without conflicts, the all files were auto-merged.

Inspecting the merge

git diff v8.27.0..HEAD -- package.json

This showed that @mdi/js, @mdi/svg and vue-material-design-icons had conflicts auto-merged
to our versions with the file: paths.

The auto-merge of package-lock.json is wrong, though as Git can not reliably merge this file,
we have to discard it and resolve it manually.

Updating the package-lock.json

We will pick their package-lock.json, but keep our customized package.json:

git checkout v8.27.0 -- package-lock.json

Re-install:

rm -rf node_modules/
npm install

npm install finished without errors, but showed warning of conflicting
peer dependencies, that it could resolve.

The same warnings are logged when running npm install for the v8.27.0
tag on the upstream repo checkout.

Replaying our dependency-overrides:

We then install our customized packages again to have npn update package-lock:

npm install file:../nc-vue-material-design-icons/dist
npm install file:../nc-mdi-js
npm install file:../nc-mdi-svg/dist

Which updated the package-lock with our override-packages accordingly.