feat: third-party embeds (#423)

* wip

* Add more providers

* icons

* unify embed providers (Youtube)

* fix case

* YT music

* remove redundant code

packages/editor-ext/src/lib/link.ts

@@ -1,4 +1,3 @@
-import { mergeAttributes } from "@tiptap/core";
 import TiptapLink from "@tiptap/extension-link";
 import { Plugin } from "@tiptap/pm/state";
 import { EditorView } from "@tiptap/pm/view";
@@ -6,24 +5,6 @@ import { EditorView } from "@tiptap/pm/view";
 export const LinkExtension = TiptapLink.extend({
   inclusive: false,
 
-  parseHTML() {
-    return [
-      {
-        tag: 'a[href]:not([data-type="button"]):not([href *= "javascript:" i])',
-      },
-    ];
-  },
-
-  renderHTML({ HTMLAttributes }) {
-    return [
-      "a",
-      mergeAttributes(this.options.HTMLAttributes, HTMLAttributes, {
-        class: "link",
-      }),
-      0,
-    ];
-  },
-
   addProseMirrorPlugins() {
     const { editor } = this;