Feature/1076 gps fix using global state

[ifirmawan]

TODO/DONE

• Store current location in global state and set it when the geo question doesn't have an answer after 1 minute
• Add new settings: Geolocation

Manual Test

Normal use cases

• Login, create a submission, submit, and sync
• Update sync interval in settings

Geolocation use cases

• Update geolocation timeout in a very short time, eg: 1 second. If the fetching location doesn't have a result then it should take from the global state (UserState.currentLocation)
• Update accuracy level
• Submit data after making some updates in the Geolocation settings

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[coveralls]

coverage: 80.976% (-0.01%) from 80.987%
when pulling 6586e66 on feature/1076-gps-fix-using-global-state
into 78326de on develop.