add is:agency-pick with 'ticker' (which has breakdown by supplier)

[twrichards]

Fixes #4246

What does this change?

• reactors the existing 'org owned' ticker to be more generic, crucially, changing the shape of the actions field in the search response from an [optional] integer, which opaquely meant the org owned count within the current search, to something more structured
  
• added new agencyPicks.ingredients config option to common.conf which supports a map of field name to list of words/phrases to match phrase on, e.g.
  
• add a new is:agency-pick search, which is a query built by ORing together each of the words/phrases from the above config as match phrase queries against the relevant field
• added a new 'ticker' for agency picks which uses the is:agency-pick query as a 'filter aggregation' when searching (same as the 'org owned' ticker) but also does a 'sub aggregation' on the top 9 usageRights.supplier (with an other count if applicable) and presents these as a table in the tooltip (to get a breakdown at a glance)
  
• adds a delay to the tooltips on the tickers (as per suggestion from @paperboyo)
• when subsequent ticker counts come in (on the polling calls which power the X new badge), they're now merged into the first set of counts (via mutation) rather than being held as a separate variable, which simplifies the html template code.
• adds a maroon border to all images which match the config (this is done in the browser with case-insensitive matching for text based fields e.g. metadata.description and exact matching for array based fields e.g. metadata.keywords)
  

Tested? Documented?

• locally by committer
• locally by Guardian reviewer
• on the Guardian's TEST environment
• relevant documentation added or amended (if needed)

[github-actions]

Deploy build 13722 of media-service::grid::all to TEST

All deployment options

• Deploy build 13722 of media-service::grid::all to TEST
• Deploy parts of build 13722 to TEST by previewing it first
• What's on TEST right now?

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From guardian/actions-riff-raff.

[andrew-nowak]

these seem to pick up a fair few non-shutterstock pics which are not an "agency pick". Since Feb shutterstock seems to provide an "EDITORS' PICKS" which looks a much clearer signal to me

[paperboyo]

For visibility. We have done some searches, and it may be best to match on both. This is from our friends at Shutterstock:

spotlight and editors picks can be used interchangeably. On our end we have a unique “spotlight” category which is used for filtering the best/most impactful images on the website. When that category is applied it also adds the keyword “editors picks”. On transmission to ftp clients, both “spotlight” and “editors picks” should be available in the keywords field.