refactor: removed polyfill out of codebase (#1398)

* refactor: integrated polyfill as a dependency

* refactor: .matches polyfill is even already included in .closest polyfill

* refactor: reverted yarn.lock

as there weren't any relevant changes out of this pull requests code changes

Author: mfranzke

packages/uikit-polyfills/index.js

@@ -4,6 +4,8 @@ import 'get-own-property-symbols';
 import '@webcomponents/webcomponentsjs/webcomponents-bundle';
 
 import 'element-closest';
+// A matches polyfill is already included in the previous closest polyfill – as long as that one is still included, we won't need the next one
+// import 'element-matches';
 import 'core-js/modules/es.string.includes';
 import 'core-js/modules/es.string.trim-end';
 import 'core-js/modules/es.string.trim-start';

packages/uikit-polyfills/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@pattern-lab/uikit-polyfills",
   "version": "5.15.5",
-  "description": "Web Component Polyfills used in Pattern Lab's UIKit",
+  "description": "Web Component and further necessary Polyfills used in Pattern Lab's UIKit",
   "main": "index.js",
   "author": "Salem Ghoweri <me@salemghoweri.com>",
   "license": "MIT",

packages/uikit-workshop/src/scripts/components/pl-nav/get-parents.js

@@ -1,22 +1,4 @@
 export const getParents = (elem, selector) => {
-  // Element.matches() polyfill
-  if (!Element.prototype.matches) {
-    Element.prototype.matches =
-      Element.prototype.matchesSelector ||
-      Element.prototype.mozMatchesSelector ||
-      Element.prototype.msMatchesSelector ||
-      Element.prototype.oMatchesSelector ||
-      Element.prototype.webkitMatchesSelector ||
-      function (s) {
-        const matches = (this.document || this.ownerDocument).querySelectorAll(
-            s
-          ),
-          i = matches.length;
-        while (--i >= 0 && matches.item(i) !== this) {}
-        return i > -1;
-      };
-  }
-
   // Set up a parent array
   const parents = [];