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

[Iam-Karan-Suresh]

Hi @Achanandhi-M i fixed the prettier issue in my code and also enhanced the error page ui litle bit enhanced. I attached the image of the page. Do I need to change anything on my code?

##what changed

1. showing what url the user tries to access on browser that not found.
2. showing the error message font color in website theme

[Achanandhi-M]

Hey @Iam-Karan-Suresh i think we don't need to include any text or content because we are redirecting in one just 1 seconds people they don't actually see those content, please don't include any content, please see the actual issue and try to solve it accordingly

[Iam-Karan-Suresh]

@Achanandhi-M I am really sorry about making mistakes. this is my first contribution to open source project. I really Improve my pr and contribution quality in future contributions. I change the code according to the requirement. Thank you so much for guiding throughout this prs @Achanandhi-M. Looking forward to join the journey with keploy.

[Achanandhi-M]

Hey @Iam-Karan-Suresh dont add any new plugins please see is there any way to add or update without using plugins, also please fix the prettify and lint issue