Add links to other mySociety services on body pages

[RichardTaylor]

Ideas for a body page eg.

https://www.whatdotheyknow.com/body/aberdeen_city_council

• Read mentions of Aberdeen City Council in Parliament via TheyWorkForYou. (#1332)
• View a map of the Aberdeen City Council area via MapIt (#818)
• UK Climate Action Plan Explorer: Aberdeen City Council (#1331)

[RichardTaylor]

Linking to WriteToThem would be nice, but we'd need an appropriate landing page on that site. I don't think there is a council page on WriteToThem. You can link to an example postcode for a council area but the page reached will be for a specific ward not the whole council.

[garethrees]

I've created specific issues for each of the suggestions as they each have their own implementation concerns. Happy for this to continue existing as a bucket for collecting them all together and stubbing out ideas.

[garethrees]

I think this would warrant improving the organisation of the sidebar (very quick spike just to demonstrate gist of idea).

[garethrees]

Could render a small feed of recent or recently fixed FMS reports if we could map bodies to an FMS ID.

[garethrees]

Linking to https://github.com/mysociety/whatdotheyknow-theme/issues/1391