Remove stylelint-config-prettier-scss
Stylelint 15 focuses on linting. Most stylistic rules which conflicted with Prettier have been removed. The additional package which disabled those rules is no longer needed. Remaining rules which conflict have been added explicitly.
This fixes deprecation warnings from Stylelint.
Related: !1610 (merged), !1615 (merged)
See: https://stylelint.io/migration-guide/to-15/#deprecated-stylistic-rules
Edited by Daniel Gerhardt