Reset 'import-notation'

[boneyfantaseas]

The combination of 'stylelint-config-standard' and 'stylelint-config-recommended-scss' leads to an interesting effect. The former contains this rule: 'import-notation': 'url'
That leads to import 'mixins.scss' > 'import url('mixins.scss')

Imports are resolved to url() imports which is interpreted by SCSS as plain CSS imports and that stops mixin/function/variable imports from working.

I suggest adding 'import-notation': null as we might have CSS imports next to SCSS imports.

[FloEdelmann]

SCSS imports are now deprecated, so I'd say import-notation: url is fine in the recommended config. It can still be overridden manually with import-notation: null.