refactor: improve styles

Author: mrholek

src/scss/_variables.scss

@@ -1,3 +1,6 @@
 // Variable overrides
 //
 // If you want to customize your project please add your variables below.
+
+$enable-rtl: true; /* stylelint-disable-line scss/dollar-variable-default */
+$enable-deprecation-messages: false; /* stylelint-disable-line scss/dollar-variable-default */

src/scss/style.scss

@@ -1,15 +1,12 @@
 // If you want to override variables do it here
 @import "variables";
 
-$enable-ltr: true; /* stylelint-disable-line scss/dollar-variable-default */
-$enable-rtl: true; /* stylelint-disable-line scss/dollar-variable-default */
-
 // Import styles
 @import "@coreui/coreui/scss/coreui";
 
 @import "layout";
 
-// Prism.js
+// Preview
 @import "examples";
 
 // If you want to add custom CSS you can put it here.