Merge branch '83-implement-nfp-logic-for-cervix-mode' of gitlab.com:bloodyhealth/drip into 83-implement-nfp-logic-for-cervix-mode

be more explicit for periOvuEnd calculation

changes shades of red in calendar, slider in settings has same style as all the other sliders

Closes #167

See merge request bloodyhealth/drip!71

Resolve "make components like prettier radio buttons"

Closes #156

See merge request bloodyhealth/drip!68

Resolve "add back button behavior for cycle day overview"

Closes #142

See merge request bloodyhealth/drip!67

Add first blueprint for temp&cervix tests

cervix position is now optional;
no computed value needed, therefore no test

Deletes old console.logs

See merge request bloodyhealth/drip!70