v4.0.0

What's Changed

• Update Rails to latest patch version (6.1.3 -> 6.1.6) by @markets in #660
• [Feat] Signup users by @franpb14 in #661
• Remove unlicense, add AGPL3 license by @sseerrggii in #664
• [Feat] Manage memberships by @franpb14 in #665
• Tests, show/hide password and signup validations by @franpb14 in #666
• [FIX] Manage users bugs by @franpb14 in #667
• [Feat] Confirmation email and new petitions emails by @franpb14 in #668
• Translation keys & minor fixes by @franpb14 in #669
• TravisCI -> GH Actions by @markets in #648
• User sign-up & cancel membership and more! by @markets in #663
• [NZ changes] reset password fixes, translatable terms, Inquiry -> Request, max hours in transfers removed by @franpb14 in #678
• [UI/UX] some random small enhancements 💅 by @markets in #679

Full Changelog: v3.20.0...v4.0.0