@jonocodes add support for arm and arm64

This version has some breaking changes. flatpak-compose.yaml needs to be regenerated.

Breaking changes

• Repo are replaced by env. Each env describes an installation type (core flags + remotes).
• Create and remove remotes works

Other changes

• Apply add assumeyes flag by @RichardFevrier in #8
• Syntax: cleaned by @RichardFevrier in #6
• Apply ignore apps with unknown repo during install process by @RichardFevrier in #9
• Overrides add user support by @RichardFevrier in #7

New Contributions

• @RichardFevrier made their first contribution in #8

Full Changelog: 0.2.1...v0.3.0