Mobile Version Language Toggle should show current locale

[massoudmaboudi]

Have you read the Contributing Guidelines on issues?

• [X] I have read the Contributing Guidelines on issues.

Prerequisites

• [X] I'm using the latest version of Docusaurus.
• [X] I have tried the npm run clear or yarn clear command.
• [X] I have tried rm -rf node_modules yarn.lock package-lock.json and re-installing packages.
• [X] I have tried creating a repro with https://new.docusaurus.io.
• [ ] I have read the console error message carefully (if applicable).

Description

When we are facing a multilingual website, it's important to indicate the change language toggle. We achieved a good result in the desktop version but I think in such a scenario, it's better we follow the desktop version to show the current language beside the icon instead of the English version of toggle only. In the above image, I prefer to see فارسی instead of Languages or when its English, I prefer to see English instead of Languages

Reproducible demo

No response

Steps to reproduce

https://iammassoud.ir/

Expected behavior

https://iammassoud.ir/

Actual behavior

https://iammassoud.ir/

Your environment

• Public source code:
• Public site URL:
• Docusaurus version used:
• Environment name and version (e.g. Chrome 89, Node.js 16.4):
• Operating system and version (e.g. Ubuntu 20.04.2 LTS):

Self-service

• [x] I'd be willing to fix this bug myself.