Setting the language in the search bar

[joelit]

Link to relevant issue(s), if any

#1514

Description of the changes in this PR

• Rendering the search results when "All languages" is chosen
• Choosing the correct search language
  • First from the url clang parameter
  • Second from cookie
  • If all else fails, from the SKOSMOS object

Known problems or uncertainties in this PR

Needs more cypress tests

Checklist

• phpUnit tests pass locally with my changes
• I have added tests that show that the new code works, or tests are not relevant for this PR (e.g. only HTML/CSS changes)
• The PR doesn't reduce accessibility of the front-end code (e.g. tab focus, scaling to different resolutions, use of .sr-only class, color contrast)
• The PR doesn't introduce unintended code changes (e.g. empty lines or useless reindentation)

[UnniKohonen]

Setting the language on a vocab home page and then on a concept page in the same vocab will set multiple SKOSMOS_SEARCH_LANG cookies with different paths. I'm not sure what effect this has but maybe the cookies should be cleared before setting a new one.

Otherwise everything seems to be working correctly.

[UnniKohonen]

When the anylang URL parameter is set, the value of the cookie is set to null. This should be fixed.

There is also a cypress test that fails but I don't know if the problem originates from this PR.

Otherwise everything looks good

[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[UnniKohonen]

LGTM!