v6.0.0

This upgrades n-ui-foundations to its latest release which pulls all o- components to their latest major version.

Add aria-labels to categories

Merge pull request #219 from Financial-Times/aria-label

add aria label for categories

Render premium labels in an o-labels v4 compatible way

Merge pull request #217 from Financial-Times/o-labels-agonstic

Render premium labels in an o-labels v4 compatible way

Remove teaserUsePromotional flag

defaults the behaviour to this flag being on.

Apply tabindex=-1 and aria-hidden=true to video image link

Merge pull request #213 from Financial-Times/no-tabbing-video-image-l…

…inks

Apply no tabbing for video image links. This is part of fixing DAC issues.

Support multiple concurrent teaser tests

Each test is driven by its own feature flag.

Remove code behind expired newDisplayMetadata flag

Merge pull request #200 from Financial-Times/matth/remove-n-display-m…

…etadata

Remove code behind expired newDisplayMetadata flag

Add isDisplayTag to GraphQL fragments

Merge pull request #199 from Financial-Times/lk/display-tag-fragment

Add displayConcept.isDisplayTag to GraphQL queries and test fixtures

Remove old in situ video flag

Merge pull request #198 from Financial-Times/rem-old-flag

Remove old flag

Don't use promotional standfirst

Merge pull request #197 from Financial-Times/revert-196-matth/use-pro…

…motional-standfirst

Revert "Use promotional standfirst"