feat(admin): 新增 markdown 编辑器支持，integrate EasyMDE markdown editor for admin interface

Introduce the EasyMDE markdown editor into the admin interface, providing enhanced
markdown editing capabilities. This integration caters to users preferring a dedicated
markdown editor with additional features and a streamlined user experience.

app/admin/config/admin.php

@@ -30,6 +30,7 @@ return [
         'ueditor'    => '百度编辑器(不建议使用)',
         'ckeditor'   => 'CK编辑器',
         'wangEditor' => 'wangEditor(推荐使用)',
+        'EasyMDE'    => 'EasyMDE(markdown)',
     ],
 
 ];

app/admin/view/layout/editor.html

@@ -10,6 +10,13 @@
     <script src="/static/plugs/wangEditor/dist/index.js?v={$version}"></script>
     {/case}
 
+
+    {case EasyMDE}
+
+    <link rel="stylesheet" href="/static/plugs/easymde/easymde.min.css?v={$version}">
+    <script src="/static/plugs/easymde/easymde.min.js?v={$version}"></script>
+    {/case}
+
     {default /}
 
     <script src="/static/plugs/ueditor/ueditor.config.js?v={$version}" charset="utf-8"></script>

app/common.php

@@ -112,6 +112,7 @@ if (!function_exists('auth')) {
         return match ($editor_type) {
             'ckeditor' => "<textarea name='{$name}' rows='20' class='layui-textarea editor' placeholder='{$placeholder}'>{$detail}</textarea>",
             'ueditor'  => "<script type='text/plain' id='{$name}' name='{$name}' class='editor' data-content='{$detail}'></script>",
+            'EasyMDE'  => "<textarea id='{$name}' class='editor' name='{$name}'>{$detail}</textarea>",
             default    => "<div class='wangEditor_div'><textarea name='{$name}' rows='20' class='layui-textarea editor layui-hide'>{$detail}</textarea><div id='editor_toolbar_{$name}'></div><div id='editor_{$name}' style='height: 300px'></div></div>",
         };
     }

public/static/plugs/easy-admin/easy-admin.js

@@ -1363,6 +1363,10 @@ define(["jquery", "tableSelect"], function ($, tableSelect) {
                                                 layer.msg(e.message)
                                             }
                                             break;
+                                        case 'EasyMDE':
+                                            var name = $(this).attr("name");
+                                            dataField[name] = (window["easyMDE" + i]).value()
+                                            break;
                                         default:
                                             var name = $(this).attr("id");
                                             dataField[name] = UE.getEditor(name).getContent();
@@ -1567,6 +1571,13 @@ define(["jquery", "tableSelect"], function ($, tableSelect) {
                                     config: {}
                                 })
                                 break;
+                            case 'EasyMDE':
+                                const easyMDEName = "easyMDE" + i
+                                window[easyMDEName] = new EasyMDE({
+                                    element: document.getElementById($(this).attr("name")),
+                                    initialValue: $(this).text(),
+                                });
+                                break;
                             default:
                                 let name = $(this).attr("name");
                                 let content = $(this).data('content')