Add Typescript for React components

[alookatommorow]

Add Typescript

Configure shakapacker to use TS and begin conversion of React components to TS

• add necessary devdependencies
• add tsconfig
• configure prettier and eslint
• configure webpack
• convert Review, Modal, Search, and more components to TS
• use protect_from_forgery with: :null_session in application_controller to allow requests from react components
• move favorite/visit routes into api controller namespace
• add ApiErrorHandler for graceful error handling in api controller namespace
• remove obsolete ReviewsController
• silence administrate deprecation warning by removing class_name option when declaring dashboards option since it is now inferred (see Automatic associations thoughtbot/administrate#1633)
• add skatepark_images to seeds
• remove redirect added in add redirect #307

Note: Heroku builds automatically prune devDependencies which are now required for TS in asset precompilation, so adding Heroku configuration to environments was required to fix the build
heroku config:set YARN_PRODUCTION=false -a <app-name>