Try to get the `.editorconfig` and `.prettierrc` files as close as possible
to the formatting that was used in Flamenco. Because these files weren't
here during most of Flamenco's development so far, having them caused quite
a few changes in the webapp files.
No functional changes intended.
Reload the webapp 60 minutes after keyboard/mouse activity.
Previously this was a hard 60 minutes after the webapp was loaded, which
means that it could happen while someone was actively working in the web
interface. This should now be prevented.