Create Live Label component

[sareh]

Is your feature request related to a problem? Please describe.
We currently use Live labels with the associated visually hidden text and aria hidden attribute in three different places in our code base. This leads to updates to usage needing to be made in multiple places - story promo, bulletin promo and usage within the parent application.
E.g. See all of the PRs linked to this issue: bbc/simorgh#5749

We should have a single reusable component that handles all of this logic and can be used in various contexts.

Describe the solution you'd like
It should be a self-contained package that can be used on pages in English as well as those not in English. Passing in translation when needed and applying relevant aria roles if necessary.

Describe alternatives you've considered
We could choose to keep it as it currently is, with implementation duplicated in multiple places.

Testing notes
[Tester to complete]

Dev insight: Will there be any potential regression? etc

• This feature is expected to need manual testing.

Additional context
Add any other context or screenshots about the feature request here.