Release 0.1.0

What's Changed

• MyAppsPage: preserve tab index on compact layout changes by @Feichtmeier in https://github.com/ubuntu-flutter-community/software/pull/52
• ExplorePage: move offline logic to builder by @Feichtmeier in https://github.com/ubuntu-flutter-community/software/pull/54
• SystemUpdatesPage: make updates selectable by @Feichtmeier in https://github.com/ubuntu-flutter-community/software/pull/56
• Move updates to main navigation by @Feichtmeier in https://github.com/ubuntu-flutter-community/software/pull/60

Full Changelog: ubuntu-flutter-community/software@v0.0.9-alpha...v0.1.0-alpha