Resolve "huge memory leak with chart"

Closes #233

See merge request bloodyhealth/drip!101

Resolve "add cycle start flag in db"

Closes #235

See merge request bloodyhealth/drip!100

Resolve "app is unusably slow with ~200 cycles"

Closes #232

See merge request bloodyhealth/drip!99

Add new home screen

Closes #200

See merge request bloodyhealth/drip!96

Resolve "Chart loads 16 sec with cycles  ~1.5 years"

Closes #220

See merge request bloodyhealth/drip!98

Resolve "apply design to settings"

Closes #228

See merge request bloodyhealth/drip!95

Resolve "bug: LTL line has gaps"

Closes #208

See merge request bloodyhealth/drip!91

Merge branch '190-bug-secondary-symptom-only-occurring-after-temp-eval-end-does-not-get-ignored-as-it-should' into 'master'

Ignore secondary symptom peak after end of temperature evaluation

Closes #190

See merge request bloodyhealth/drip!93

* late mucus shift and therefore no postovu phase

* latest valid cervix shift
* late and therefore invalid cervix shift

adds icons to chart

Closes #211

See merge request bloodyhealth/drip!94

reduces footer actions

Closes #177

See merge request bloodyhealth/drip!83