Neu Supporters

Added Supporters settings

Supporters › Settings holds what the public page shows about its size, the welcome message, and whether admins are emailed about each new supporter.

Supporters › Settings has rows for showing how many supporters the page has, how many are on each tier, and the monthly income from paid tiers; the welcome message a new supporter reads; and whether every admin of the team is emailed when someone joins. Each row saves on its own and can be found from the settings search.