优化编辑器操作助手;优化文章阅读样式；

view/admin/post/edit_content.html

@@ -163,6 +163,11 @@
                 type: 'editor'
             }
         }
+        editorConfig.hoverbarKeys = {
+            text: {
+                menuKeys: ['headerSelect', 'code', 'insertLink', 'bulletedList', '|', 'bold', 'through', 'color', 'bgColor', 'clearStyle']
+            }
+        }
         editorConfig.onChange = (editor) => {
             contentSaveLock = false;