Rewrite to use only HTML and JavaScript in the browser

Full Changelog: v1.2.0...v2.0.0

Find exact identical duplicates, and more fixes

• Added section with exact identical duplicates
• Cleaned up backend duplicate detection
• Better front- and backend communication (hopefully fixes #7)
• More additional features
• Prettified the markup

Minor code-generation fixes

What's Changed

• 🐛 use tmpl string for JSON.parse by @ManiaciaChao in #4
• Fix Folders and VUE url by @f4n0 in #6

Cross platform compatability

The program can now be used on other platforms than Windows and export filename can be given as an argument.

Initial release

v1.0.0

Backport to python 3.7