User suddenly logged out if modifying configuration for too long

## Describe the bug
If the authentication token expires while the user is on the configuration page, the user is logged out suddenly and all progress on the configuration is lost. (This won't happen if the user clicks on the tabs which send requests to the backend.)

## To Reproduce
Steps to reproduce the behavior:
1. Run the Island, open the configuration page and modify fields
2. Wait for the auth token to expire
3. See that you're automatically logged out even if you're in the middle of modifying the configuration

## Expected behavior
The user shouldn't suddenly be logged out.