Make "teams" page better

[joepio]

• Add short descriptions (one sentence
• Hide the long list of responsibilities, make it collapsible (not sure if we can link to "responsibilities" on Airtable, would be nice)
• Hide the contact details too

[joepio]

Alex Alarga had a bunch of ideas:

• Add short video per team
• Add photo per team

Mia also had some ideas:

• Rewrite text to make it more fun to join