Full Renewal

• Convert JavaScript to TypeScript
• Replace <textarea> with Monaco Editor
• Introduce Create React App
• Introduce Redux Toolkit
• Redesign the user interface
• Replace Material Design Lite with Bootstrap
• Use Font Awesome
• Enable to edit the data in the visualized data
• Enable adjust width of panes
• Update npm modules

Replace with Create React App + TypeScript + Sass

• Replace the development environment with Create React App.
• Transcode jsx to tsx partially.
• Transcode Stylus to Sass (.scss).

Basically the feature set is same as old version. Just migrated to CRA.

Colored table header

Merge pull request #41 from ogaoga/feature/gradation

Colored table header based on nested level.

Updated modules

Merge pull request #40 from ogaoga/production

Fixed Webpack config and copyright year.