Move license comment to it's own file

Author: jackdomleo7

checka11y-errors.css

@@ -1,3 +1,4 @@
+/*! Checka11y.css v2.3.0 | MIT License | github.com/jackdomleo7/Checka11y.css */
 :root {
   --checka11y-text-error: #721c24;
   --checka11y-bg-error: #ffc6c6;

checka11y-errors.min.css

@@ -1,2 +1,3 @@
+@use './shared/license';
 @use "./warnings/checka11y-warnings.scss";
 @use "./errors/checka11y-errors.scss";

src/checka11y.scss

@@ -1,3 +1,4 @@
+@use '../shared/license';
 @use "./variables" as *;
 @use "./customisation" as *;
 @use "../shared/variables" as *;

src/errors/checka11y-errors.scss

@@ -0,0 +1 @@
+/*! Checka11y.css v2.3.0 | MIT License | github.com/jackdomleo7/Checka11y.css */

src/shared/_license.scss

@@ -1,4 +1,3 @@
-/*! Checka11y.css v2.3.0 | MIT License | github.com/jackdomleo7/Checka11y.css */
 @use "./variables" as *;
 
 :root {

src/warnings/_customisation.scss

@@ -1,3 +1,4 @@
+@use '../shared/license';
 @use "./variables" as *;
 @use "./customisation" as *;
 @use "../shared/variables" as *;