Rebuild with the latest version of React and Redux

[Hidetake Iwata]

TODOs:

• Create a blank project of React, Redux and Typescript.
• Put static assets (manifest and images).
• Check if the development version works on Chrome.
• Check if the production build works on Chrome.
• Add automated build on CI.
• Migrate feature: show top sites
• Migrate feature: show bookmarks
• Migrate feature: edit bookmarks
• Migrate feature: remember state of folders
• Migrate feature: themes
• etc...