As a study participant I want to export my data from my dashboard so that I may have a record of it.

[agretta]

Scenario: The participant successfully exports their data.
Given: A participant has collected enough data to export, and is on the dashboard page;
When: The participant selects export data;
Then: The data should be saved as a .csv file and a message notifying the user the data was exported successfully should be displayed.

Scenario: The participant has no data to export.
Given: A research participant has no data to export, and is on the dashboard page;
When: The participant selects export data;
Then: An error message should be displayed and no data should be exported.