geteduroam: äldre versioner att ladda ner

What's changed
- Fix a bug where the UI can end up in an inconsistent state after removing a Wi-Fi profile
- Fix a silent crash when renewing the certificate credential in the background
- Fix a problem where pressing the Toast notification would not do anything
- When renewing, try using a refresh token; if that fails, initiate a new authorization flow
- Improve URL detection in the discovery search field
- Improve handling command line arguments
- Show warning symbol when loading discovery fails

Known bugs
- Error messages in other languages than English may not wrap
- Network errors after selecting an institution may not be handled properly