Do not prepend siteaccess to URL if default

[pspanja]

🎫 Issue	IBX-8088

Description:

If default siteaccess uses URI type matching, URL alias generated by passing default siteaccess explicitly will be different than when generated without passing it explicitly. Since in both cases the URL alias is generated for the same siteaccess, the result should be the same:

Example:

{{ path('ibexa.url.alias', {'contentId': content.id, 'siteaccess': 'default'}) }}

generates:

/default/some-alias

But:

{{ path('ibexa.url.alias', {'contentId': content.id}) }}

generates:

/some-alias

This adds the check that the matched siteaccess is default, in which case prepending of the siteaccess ID to the URL is skipped.

For QA:

Documentation:

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

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

See analysis details on SonarCloud

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[mnocon]

Hi! During the rename of main branch to 6.0, this PR was closed accidentally - I'm sorry about that.

I've reopened it, and set it to target the 5.0 branch - corresponding to the v5 version.