• now a popup appears whenever there were changes made to a task that has not been saved
• app logs out after 3 days because a normal jwt token is only valid for so long. this adds the option to request a long_token which should be valid for 30 days (3 & 30 days are from the default config)
• when you are logged out due to the token expiring, the app tells you now and remembers the server URL.
• when editing the default list in the settings, the front page now gets refreshed