chore: release 6.0.0

[github-actions]

🤖 I have created a release *beep* *boop*

6.0.0 (2020-11-15)

⚠ BREAKING CHANGES

• fix rendering issues in Safari, Firefox by changing the structure

Features

• create E2E suite to test on real browser (#449) (847ab1c)
• new documentation website ✨ (#450) (3f620aa)
• switch project to monorepo (#451) (ce59bad)
• upgrade focus-trap-js to support focus on radio elements (#447) (d51f8e0)
• use body-scroll-lock instead of no-scroll (#455) (033f901)

Bug Fixes

• fix rendering issues in Safari, Firefox by changing the structure (5727913)

Tests

• test that scroll is not blocked when blockScroll is false (3d909b6)
• test that scroll is unblocked when multiple modals are closed (fba3593)
• test that scroll is unblocked when second modal has blockScroll set to false (cf4b6b3)

Miscellaneous

• delete xmlns prop from svg close icon (#429) (8743327)
• use hook with modal manager (#453) (b016ec4)

Documentation

• readme: add integration tips (4ad6d1d)
• readme: remove dependencies badge (5f7d0ad)
• readme: remove example links (9a06a62)
• readme: update features (ce05bd2)

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