feat: add github profile analyzer

[JeevaRamanathan]

Closes #127
This PR introduces the GitHub Profile Analyzer dashboard:

• Enables searching and analyzing GitHub profiles with advanced stats and charts - view GitHub profile stats, repositories, and pull request activity at a glance
• Allows comparison between two profiles.
• Adds a modal for GitHub token input, including a help link.
• Improves UI/UX and error handling.
• Adds a home page card for the feature.
• Updates documentation to reflect the new dashboard and contribution ideas.

Hi @venisha-kalola please add the github token as per this managing your personal access tokens with the key name VITE_GITHUB_TOKEN in the environment varaibles

[vercel]

@JeevaRamanathan is attempting to deploy a commit to the venisha-kalola's projects Team on Vercel.

A member of the Team first needs to authorize it.

[JeevaRamanathan]

Hi @Hrishikesh-Dalal, @venisha-kalola, a gentle reminder to review this pr under the hacktoberfest as today is the final for the event. I have attached a video of working version.

bandicam.2025-10-31.20-21-07-826.online-video-cutter.com.mp4

[JeevaRamanathan]

Hi @Hrishikesh-Dalal, a gentle reminder to review and provide suggestions if any