Bump mini-css-extract-plugin from 1.6.2 to 2.0.0 (#385)

Bumps [mini-css-extract-plugin](https://github.com/webpack-contrib/mini-css-extract-plugin) from 1.6.2 to 2.0.0.
- [Release notes](https://github.com/webpack-contrib/mini-css-extract-plugin/releases)
- [Changelog](https://github.com/webpack-contrib/mini-css-extract-plugin/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/mini-css-extract-plugin@v1.6.2...v2.0.0)

---
updated-dependencies:
- dependency-name: mini-css-extract-plugin
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -51,7 +51,7 @@
     "file-loader": "^6.2.0",
     "html-webpack-plugin": "^5.3.2",
     "jest": "^27.0.6",
-    "mini-css-extract-plugin": "^1.6.2",
+    "mini-css-extract-plugin": "^2.0.0",
     "mockdate": "^3.0.5",
     "node-sass": "^6.0.1",
     "onchange": "^7.1.0",