PHP API Ref enhancement (June first batch)

[adriendupuis]

Question	Answer
JIRA Ticket
Versions	master, 4.6
Edition

Summary

Enhance or fix few PHP API Reference's templates.

• components/interface-title.html.twig: Fix FQCN
• components/method-arguments.html.twig:
  • Link to the constant in "Default value" col.
  • Use - instead of None in empty "Default value" col.
  • Use - in empty "Description" col.
  • Fix empty CSS class assignment to empty col.
• components/method-response.html.twig: Remove the "—" separation between response type and response description.
• components/tags.html.twig: Hide final tag.
• base.css.twig:
  • Fix paragraph top and bottom margin in method param table's description cell.
  • Avoid new line in param name or type.

Notes:

• This is a first batch, some other needed changes are known, and will be fixed or enhanced in a near future.
• 2nd batch: PHP API Ref enhancement (June 2nd batch) #2403

Comparison between old current and new preview

• Copy FQCN is fixed on interface pages such as ActivityLogServiceInterface:
  • Old ActivityLogServiceInterface Copy FQCN = Ibexa\Contracts\ActivityLog
  • New ActivityLogServiceInterface Copy FQCN = Ibexa\Contracts\ActivityLog\ActivityLogServiceInterface
• Compare method parameter tables, especially "Default value" column:
  • Old MemberService::getCompanyMembers()
  • New MemberService::getCompanyMembers()
• Compare method parameter tables, especially "Description" column:
  • Old DateRange::__construct()
  • New DateRange::__construct()

Checklist

• Text renders correctly
• Text has been checked with vale
• Description metadata is up to date
• Redirects cover removed/moved pages
• Code samples are working
• PHP code samples have been fixed with PHP CS fixer
• Added link to this PR in relevant JIRA ticket or code PR

[mnocon]

I went over the changes locally (skipping the autogenerated ones) and I think they make sense 💪

Thank you for providing this detailed description (with comparisons), without it it would be very hard to review this