fix: updated not found page

[Iam-Karan-Suresh]

What has changed?

Enhanced the 404 error page to provide a better user experience and fix template rendering issues. The changes include:

• Fixed broken template literals in the 404 page title
• Improved page layout and content structure
• Added clear navigation options for users
• Enhanced visual styling using Docusaurus utility classes

This PR Resolves #[issue_number] - Fix 404 page structure and template rendering

Type of change

• Bug fix (non-breaking change which fixes an issue).
• New feature (non-breaking change which adds functionality).
• Breaking change (fix or feature that would cause existing functionality to not work as expected).
• Documentation update (if none of the other choices apply).

How Has This Been Tested?

1. Run development server:

npm  start

[github-actions]

Thank you and congratulations 🎉 for opening your very first pull request in keploy

[Achanandhi-M]

Hey @Iam-Karan-Suresh The Changes looks really amazing, also can you please redirect the user to the main docs page /docs/. Instead of just showing a 404 page

[Iam-Karan-Suresh]

What has changed?

Enhanced the 404 error page to provide a better user experience and fix template rendering issues. The changes include:

• Fixed broken template literals in the 404 page title
• Improved page layout and content structure
• Added clear navigation options for users
• Enhanced visual styling using Docusaurus utility classes
• auto redirect to /docs
• added the NotFoundPage.js component and 404 error image for better ui

This PR Resolves #[issue_number] - Fix 404 page structure and template rendering

Type of change

• Bug fix (non-breaking change which fixes an issue).
• New feature (non-breaking change which adds functionality).
• Breaking change (fix or feature that would cause existing functionality to not work as expected).
• Documentation update (if none of the other choices apply).

How Has This Been Tested?

1. Run development server:

npm  start

Screencast.from.2025-10-24.16-26-14.webm

[Achanandhi-M]

Hey @Iam-Karan-Suresh can you please fix the prettier issues, the ci pipeline is failing