Release 1.0.0b2

This will include support for Python >= 3.7 due to updated Django (!214 (merged)) and it will contain updated translations (!216 (merged)).

To Do

• Bump version in Repomaker's init
• Push signed Git tag
• Write CHANGELOG.md
• Add release notes in appdata.xml
• Update PyPi
• Update Flatpak
• Release deb package to Ubuntu ppa with updated changelog