[Data sharing] Clarify that the sharing terms must be accepted before the user begins collecting data

[gino-m]

trafficstars

[gino-m]

@amegantz For advice

[amegantz]

Something like this?

[gino-m]

Thanks @amegantz! "You must agree to the data sharing terms to continue." is good. Should we make it clear these terms were set by the survey organizers?

[amegantz]

To continue, you must agree to the data sharing terms set by the survey organizers.