* Refactor Onboarding
- use ternary for simple if-else cases (to reduce lines of code)
- remove unecessary trailing else clause
- destructure state variables
- add a consistent return eg null when nothing is rendered
- use prevState callback when new state depends on previous state
- use switch case when toggling onboarding screens, constants easier to read imo.
* Add rest of refactor
* Remove destructure to meet 25 line minumum from codeclimate.
* Remove duplicate calls to indexOf.
* Remove duplicate calls to indexOf in handleSaveArticle.
* Refactor handleCheckUser
* Update snapshot
* Address PR review comments.
* Revert "Update snapshot"
This reverts commit e17e915286fb621ffca745b28193b7ba63dbc498.
* Update snapshot
* Add back if clause
* Update refactor
2d4d469e86