Got TinyMCE 5 added in barely working state

- Some extensions & custom actions not working.
- Updated anything visual to not be breaking (Icons) and anything
  functional that prevented loading.

public/libs/tinymce/plugins/anchor/plugin.min.js

@@ -1 +1,9 @@
-!function(){"use strict";var t=tinymce.util.Tools.resolve("tinymce.PluginManager"),a=function(t){return/^[A-Za-z][A-Za-z0-9\-:._]*$/.test(t)},e=function(t){var e=t.selection.getNode();return"A"===e.tagName&&""===t.dom.getAttrib(e,"href")?e.id||e.name:""},i=function(t,e){var n=t.selection.getNode();"A"===n.tagName&&""===t.dom.getAttrib(n,"href")?(n.removeAttribute("name"),n.id=e,t.undoManager.add()):(t.focus(),t.selection.collapse(!0),t.execCommand("mceInsertContent",!1,t.dom.createHTML("a",{id:e})))},n=function(r){var t=e(r);r.windowManager.open({title:"Anchor",body:{type:"textbox",name:"id",size:40,label:"Id",value:t},onsubmit:function(t){var e,n,o=t.data.id;e=r,(a(n=o)?(i(e,n),0):(e.windowManager.alert("Id should start with a letter, followed only by letters, numbers, dashes, dots, colons or underscores."),1))&&t.preventDefault()}})},o=function(t){t.addCommand("mceAnchor",function(){n(t)})},r=function(o){return function(t){for(var e=0;e<t.length;e++)(n=t[e]).attr("href")||!n.attr("id")&&!n.attr("name")||n.firstChild||t[e].attr("contenteditable",o);var n}},c=function(t){t.on("PreInit",function(){t.parser.addNodeFilter("a",r("false")),t.serializer.addNodeFilter("a",r(null))})},d=function(t){t.addButton("anchor",{icon:"anchor",tooltip:"Anchor",cmd:"mceAnchor",stateSelector:"a:not([href])"}),t.addMenuItem("anchor",{icon:"anchor",text:"Anchor",context:"insert",cmd:"mceAnchor"})};t.add("anchor",function(t){c(t),o(t),d(t)})}();
+/**
+ * Copyright (c) Tiny Technologies, Inc. All rights reserved.
+ * Licensed under the LGPL or a commercial license.
+ * For LGPL see License.txt in the project root for license information.
+ * For commercial licenses see https://www.tiny.cloud/
+ *
+ * Version: 5.10.2 (2021-11-17)
+ */
+!function(){"use strict";function a(e){return e.getAttribute("id")||e.getAttribute("name")||""}function c(e){return e&&"a"===e.nodeName.toLowerCase()&&!e.getAttribute("href")&&""!==a(e)}function d(e){return e.dom.getParent(e.selection.getStart(),l)}function r(e,t){var o,a,n,r,i,l=d(e);l?(n=e,r=t,(i=l).removeAttribute("name"),i.id=r,n.addVisual(),n.undoManager.add()):(a=t,(o=e).undoManager.transact(function(){var e,n;o.getParam("allow_html_in_named_anchor",!1,"boolean")||o.selection.collapse(!0),o.selection.isCollapsed()?o.insertContent(o.dom.createHTML("a",{id:a})):(n=(e=o).dom,u(n).walk(e.selection.getRng(),function(e){s.each(e,function(e){var t;c(t=e)&&!t.firstChild&&n.remove(e,!1)})}),o.formatter.remove("namedAnchor",null,null,!0),o.formatter.apply("namedAnchor",{value:a}),o.addVisual())})),e.focus()}function i(r){return function(e){for(var t,n=0;n<e.length;n++){var o=e[n],a=void 0;!(a=t=o)||a.attr("href")||!a.attr("id")&&!a.attr("name")||t.firstChild||o.attr("contenteditable",r)}}}var e=tinymce.util.Tools.resolve("tinymce.PluginManager"),u=tinymce.util.Tools.resolve("tinymce.dom.RangeUtils"),s=tinymce.util.Tools.resolve("tinymce.util.Tools"),l="a:not([href])";e.add("anchor",function(e){var t,n,o;(t=e).on("PreInit",function(){t.parser.addNodeFilter("a",i("false")),t.serializer.addNodeFilter("a",i(null))}),(n=e).addCommand("mceAnchor",function(){var o,e,t;t=(e=d(o=n))?a(e):"",o.windowManager.open({title:"Anchor",size:"normal",body:{type:"panel",items:[{name:"id",type:"input",label:"ID",placeholder:"example"}]},buttons:[{type:"cancel",name:"cancel",text:"Cancel"},{type:"submit",name:"save",text:"Save",primary:!0}],initialData:{id:t},onSubmit:function(e){var t=o,n=e.getData().id;(/^[A-Za-z][A-Za-z0-9\-:._]*$/.test(n)?(r(t,n),0):(t.windowManager.alert("Id should start with a letter, followed only by letters, numbers, dashes, dots, colons or underscores."),1))||e.close()}})}),(o=e).ui.registry.addToggleButton("anchor",{icon:"bookmark",tooltip:"Anchor",onAction:function(){return o.execCommand("mceAnchor")},onSetup:function(e){return o.selection.selectorChangedWithUnbind("a:not([href])",e.setActive).unbind}}),o.ui.registry.addMenuItem("anchor",{icon:"bookmark",text:"Anchor...",onAction:function(){return o.execCommand("mceAnchor")}}),e.on("PreInit",function(){e.formatter.register("namedAnchor",{inline:"a",selector:l,remove:"all",split:!0,deep:!0,attributes:{id:"%value"},onmatch:c})})})}();