Admin page (edit step log)

[juroc95]

Edit step log page: Nathan (frontend)

• Pressing the "edit step log" button should take the admin to their edit step log page.
• The data is organized by date, and the admin should be able to change the step count for each date.
• This means that an "edit" button should be available for each date.
• Pressing the "edit" button, entering a step count, and pressing "submit" should update the user's step log.
• If the user belongs to a team, the team's total step count and average step count should also be updated.