Bump css-loader from 3.5.2 to 5.0.0

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 3.5.2 to 5.0.0.
- [Release notes](https://github.com/webpack-contrib/css-loader/releases)
- [Changelog](https://github.com/webpack-contrib/css-loader/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/css-loader@v3.5.2...v5.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -59,7 +59,7 @@
     "@babel/preset-react": "^7.9.4",
     "babel-loader": "^8.1.0",
     "babili-webpack-plugin": "^0.1.2",
-    "css-loader": "^3.5.2",
+    "css-loader": "^5.0.0",
     "electron-installer-debian": "^3.0.0",
     "electron-installer-dmg": "^3.0.0",
     "electron-installer-redhat": "^3.0.0",