Lack of Navigation Bar for Documentation on Mobile Devices

Description:
Currently, the Enatega Multivendor and Single Vendor websites lack a navigation bar for accessing documentation on mobile devices. This absence can impede user experience, especially for users who frequently access the site on their mobile devices and need quick access to relevant documentation.

Steps to Reproduce:
Open the Enatega Multivendor or Single Vendor website on a mobile device.
Attempt to navigate to the documentation section.
Observe that there is no dedicated navigation bar or easily accessible link for documentation.

Expected Behavior:
A navigation bar or a clearly visible link/button should be present on the mobile version of the Enatega website, providing users with convenient access to documentation.

Actual Behavior:
There is no navigation bar or prominent link for documentation on the mobile version of the Enatega Multivendor and Single Vendor websites.

WhatsApp.Video.2023-12-14.at.13.01.39_2d568c96.mp4

未指定文件、测试或入口点。首先定位 Enatega Multivendor 和 Single Vendor 网站的移动导航组件，然后在移动视口中复现缺失的文档访问入口。完成标准是两个移动版本都提供一个清晰可见的导航项或指向文档部分的链接。

由索引模型根据 Issue 内容生成。