feat: add initial portfolio page layout and structure

[davepandit]

This pull request introduces a responsive and modern portfolio page. The portfolio page includes key sections and features designed to provide an engaging user experience across all devices.

Key Features:

1. Responsive Design
2. Menu Navigation
3. Team Showcase
4. Toogle tabs to see the memebers from that team only

The target page was like this:

And the result looks like this:

In order to implement the 4th feature I created a global state which can be found in the src/context/TabContext.jsx, because of the current structure of the project, in order to show the members specific to one team and to avoid prop drilling this approach is chosen and most probably when the content will come from any CMS then also I think that will be a good approach to follow.🤔

Here is how it is looking as of now after implementing the global state(no changes with respect to UI)