Changelog:

• Fix: When loading a session from keyring, update the app version and user agent with the current ones
• Introducing Proton's refreshed look.
• Fix: Crash when attempting to fetch netzone
• Fix: "1000:Permission Denied" error when killswitch is enabled

Successfully built and tested protonvpn-cli and protonvpn-gui.

Signed-off-by: Gavin Zhao <git@gzgz.dev>