Add a Changelog Tab and Pages #495

Important! This issue depends on the completion of #494

We want to add another tab to the docs website - Change Log - to document the changelog in Permit. The theme of the changelog should look like the one on the Docusaurus website: https://docusaurus.io/changelog

Requirements

• Add a new button Changelog in the top navbar that added in Add API Documentations to the Website #494
• Create a new folder in the docs named changelog that will contain the changelog template in timeline folders
• Ensure the sidebar is auto-generated with all pages in the changelog folder and properly displayed there
• The template should be similar to Docusaurus template, but adopt the Permit UI language
• The code/functionality should be similar to the custom changelog plugin in Docusaurus source code: https://github.com/facebook/docusaurus/tree/main/website/src/plugins/changelog

Bounty Assignment

1. Before participating in this bounty, comment here with your detailed plan and timeline. We will not assign this issue if this information is missing. Please, DO NOT attempt the bounty before your proposal got accepted.
2. This task is on a first-come, first-served basis, but we will give it to the most promising/detailed proposal. There is an ask to avoid any GPT-generated proposals.