tracking page

[PacoSchwab]

Value proposition

As a user I want to see a tracking page So that I can track my progress in the breathing exercises

Description

Acceptance criteria

• [x] a tracking page is displayed
• [x] the tracking page contains a section for the breathing exercises displaying the retention times of the past 7 days

Tasks

• [x] create tracking page
• [x] create a layout with a bar diagram

[malgosiam]

LGTM! just a small remark - at the end of acceptance criteria there is the empty point