Enhance information about fetcher runs

• As a user
• I want to know the freshness of data and the date of next update
• in order to be confident about data.

Tasks

UI displays:

• all pages under a provider: the frequency of schedules for that provider + the next schedule
• on dataset page: the last update date in DBnomics of that dataset
• on series page: the last update date in DBnomics of that series
• informations are displayed more prominently on the page

Phrasing Exploration

Bad sentences examples

• This provider was last updated on {datetime}.
• Data for this provider is updated daily on DBnomics.
• Next update for this provider will start at {datetime}.

Generalities at the provider level should be avoided because users could understand that "all data for this provider was updated"

Better examples

• This dataset was last updated on {datetime}.
• This series was last updated on {datetime}.