- Replace uses of deprecated Bourbon helpers with raw CSS
- Add autoprefixer into the build chain to prefix the now removed helpers
This process was achieved by running through each of the deprecation warnings and using the following bash function to replace it in all files:
```
function bourbon-deprecate() {
grep -rl "@include $1" ./frontend --exclude-dir=.git | xargs sed -i '' -E "s/@include $1[(](.*)[)]/$1: \1/g"
}
```
For some helpers, this did not result in valid CSS, so manual modifications were made.
Closes#1189#1274
* Updates eslint packages
* Expected parentheses around arrow function argument having a body with curly braces
* Prop type `object` is forbidden
* Visible, non-interactive elements should not have mouse or keyboard event listeners
* Prop type is defined but not used
* Unexpected use of file extension "jsx"
* Expected 'this' to be used by class method
* HTML entities must be escaped
* Prevent default behavior on more options button click
* Add awesome card stacking animations on login
* Fix linter error
* Fix proptypes warning and clean up if/then logic
* True up vh units
* Make logout pixel perfect with login form
* Add SCSS pipeline and fix login style issues
* Fix nav styles and make tests pass
* Fix nav header styles and animations
* Change font-size to 13px on nav
* Fix duplicate specificity of styles
* Extracts stacked boxes UI to a re-usable component
* Presence validator
* Equality validator
* Adds ResetPasswordFrom
* PasswordResetPage component and route
* Ex icon on forgot pw page goes to login
* Smooth out the fonts so they match the mocks
* Remove dynamic background and refactor colors
