* Add extension-landing generalized styles, install scratch link component
* Make EV3 page use generalized stuff
* Use OS_ENUM file instead of class variable
* use extension-landing/os-enum in os chooser
* Use extension-landing class in extension-landing.scss
* Use extension-landing styles and components on microbit page
* Add view-specific styles
* Move install scratch link l10n strings to src/l10n.json
* Start moving steps display to its own components
* Finish initial pass at Step, Steps components for extension landing pages
* Create ProjectCard component
* Use new components on InstallScratchLInk component
* Use new components on EV3 page
* allow className prop in Steps component
* Use new components on micro:bit landing page
* imageUrl -> imageSrc in ProjectCard
* Create ExtensionHeader component and use it on micro:bit and EV3 pages
* Fix a spacing issue in the InstallScratchLink component
* Add ExtensionRequirements component
* Use ExtensionRequirements component on landing pages
* Remove requirements l10n string for ev3 page
* Move project card styles out of things-to-try section
* Don't render the number row in a step if compact and number props are not set
* Add ExtensionSection component
* Use ExtensionSection on ev3 and microbit pages
* Move state configuration to ExtensionLanding class
* Move tip box, screenshot styles outside of specific section
* Add TipBox component and use it on the EV3 page
* Use hr element instead of section-separator div
* Remove refactor TODO comments :)
* start building ev3 landing page structure
* Inject translations, add more content and structure to ev3 landing page
* Add ev3 route
* add active styles for os chooser buttons
* Add ev3 assets
* Add content and intial styles for everything down to "Sample Projects"
* Add correct padding to all sections on ev3 page
* Add more margins to match the mockup
* Create os chooser component for reuse on other landing pages
* Make EV3 page stateful, add OS logic, change step styles, fix images on Chrome
* Add sample project cards and styles
* Add fixed ev3 icon svg
* Add app store badges (no href on links yet)
* Add section separator, fix sample project card margins
* Add border to project cards, make project cards clickable links
* Add FAQ boilerplate and styling from InformationPage component
* Add indented ol style, example
* Add link style with underline
* Add EV3 retail link
* Content updates
* Fix some z-index issues with os chooser
* micro:bit page mega-commit
* os chooser should not have a higher z-index than nav
* Update starter projects
* Localize OS chooser
* Add localization configuration for EV3 page
* Localize section titles on ev3 page
* Add starter project images and descriptions
* Add link to microbit.org
* Fix tip box width on microbit and ev3 pages
* add l10n strings up to things to try on ev3 page
* Fix lint error in ev3.scss
* Add download link style to ev3
* microbit getting started text and images
* Remove tip about microbit name
* Hex file and starter project download links
* microbit wording updates
* update images
* Fix issues with download link style
* text fix
* Add ev3 starter project downloads
* Add microbit l10n file and config
* Add l10n strings for microbit header and scratch link sections
* Add l10n strings for microbit page up to faq
* content updates
* Fix some page overflow issues
* microbit faq content and style
* Use zipped version of microbit hex file
* Add platform name to scratch link download button
* Add EV3 faq to l10n.json
* Add final strings from micro:bit and EV3 pages to l10n.json files
* Add white download asset
* Tweak styles for ev3 and microbit
* Add some final tweaks to the EV3 page styles
* Add TODO comments about refactoring duplicate code
