Minor modifications to "Download locations as CSV"

[llayman]

This feedback is based on exporting user ending in "69" on 12/27.

• [x] The "Time" column header has an extra " in it
• [x] the user id should appear on each line in a new column.
• [x] The entries should be sorted according to time from 00:00:00-23:59:59
• [ ] Change the filename from "my_data.csv" to "locationsexport.csv"