Revert "refactor(test): auto-format codebase with Stylelint"

This reverts commit 85203dd.

Author: mfranzke

source/css/db-ui-base.scss

@@ -7,7 +7,7 @@
 // stylelint-disable-next-line import-notation, @stylistic/string-quotes
 @import "../../build/scss/variables";
 // stylelint-disable-next-line @stylistic/string-quotes
-@import "variables.css";
+@import url("variables.css");
 
 /* body {
 	font-family: var(--asset-font-db-screensans-regular-name);

source/styleguide/css/styleguide-specific.css

@@ -4,10 +4,9 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-/* ------------------------------------*\
+/*------------------------------------*\
     $PATTERN LAB-SPECIFIC STYLES
-\*------------------------------------ */
-
+\*------------------------------------*/
 /**
  * This stylesheet is for styles you want to include only when the interface is being viewed within Pattern Lab.
  * This is helpful for displaying demo styles for grids, animations, color swatches, etc