highlighting

I noticed some CSS properties not being highlighted properly. I found css-shared.js to be missing some properties. Mainly it concerns CSS Grid properties.

Example of produced highlighting:

Expected behavior:
![hljs112-expected](https://user-images.githubusercontent

Describe the bug
When creating a dump on an empty MeiliSearch instance, the dump is created correctly but when launching it using --import-dump the launch fails with the following error:

Error: No such file or directory (os error 2)

But the file does exists.

To Reproduce
Steps to reproduce the behavior:

1. Launch empty MeiliSearch instance
2. Create dump
3. Wait

Woops! Sorry for that, and thank you for catching it! I meant to type continue there but I slipped. Testing the codebase on the demo directory did not raise problems so I went along.

No promises here, but would you be open to PRs related to building an integration test suites? Such regressions could be caught pretty easily with basic tests.

_Originally posted by @clement-elbaz in ht