Normcap

**Breaking changes:**

- All: NormCap settings will be reset on upgrade (due to changes in the settings
system)!
- Prebuilt packages: A different set of languages is shipped! `jpn`, `jpn_vert` & `fra`
got removed, but you can now add them yourself (Settings → "open data folder")

**Other changes:**

- All: Use native settings storage
- All: Improve settings menu in case of many languages
- All: Slightly better performance
- Prebuilt packages: Allow extending with additional languages
[137](https://github.com/dynobo/normcap/issues/137)
[127](https://github.com/dynobo/normcap/issues/127)
[104](https://github.com/dynobo/normcap/issues/104)
- macOS: Fix missing `libpng` in package
[128](https://github.com/dynobo/normcap/issues/128)
- Linux: Fix AttributeError: 'MainWindow' object has no attribute 'macos_border_window'
[139](https://github.com/dynobo/normcap/issues/139)
[138](https://github.com/dynobo/normcap/pull/138)
- Windows: Fix update check

- Linux: Fix disappearing menu bar on gnome
[121](https://github.com/dynobo/normcap/issues/121)
- macOS: Fix update checking
- macOS: Draw border above menubar & dock
[119](https://github.com/dynobo/normcap/issues/119) (just cosmetic, both are still
not selectable)
- All: Slightly better performance
- All: More useful error message for issues with QT
- All: Application can now be cancelled via `<ctrl>+c` in terminal
- All: Removed switching modes via `<space>`-key. Use the menu instead.

- All: Improve robustness of settings
- Prebuilt packages: Add languages `jpn` and `jpn_vert`
- macOS: Fix bug that prevented the selection of a region
- macOS: Catch `ImportError` of `urllib` in case update check is enabled

- Fix styling issues with settings menu

- Bug fixes related to update checking
- Small UI improvements

- Add settings menu
- Add check for updates on startup (experimental, needs opt-in)