Custom 404 error page with search bar

[Programmer-Arvind]

Related Issue

Fixes #315

Description

I have added a responsive 404 error page that has redirects to the index.html and also a interactive search bar. This custom page will retain the users on the page in case they click a broken or unavailable link.

Type of PR

• [x] Bug fix
• [x] Feature enhancement

Screenshots / videos (if applicable)

Checklist:

• [x] I have performed a self-review of my code
• [x] I have read and followed the Contribution Guidelines.
• [x] I have tested the changes thoroughly before submitting this pull request.
• [x] I have provided relevant issue numbers, screenshots, and videos after making the changes.
• [x] I have commented my code, particularly in hard-to-understand areas.

Additional context:

I have added 2 files 404.html and 404.css (in CSS directory). The 404.html file depends on the search's script in posts/scripts.js and the stylesheet css/styles.css. Any suggestions to improve are welcome.

[github-actions[bot]]

Thank you for submitting your pull request! 🙌 We'll review it as soon as possible. If there are any specific instructions or feedback regarding your PR, we'll provide them here. Thanks again for your contribution! 😊

[Programmer-Arvind]

Please merge this or give me suggestions to change.

[CSEdgeOff]

@Programmer-Arvind UI wasn't good could you improve that.?

[Programmer-Arvind]

@Programmer-Arvind UI wasn't good could you improve that.?

How would you like it? What do you want me to add or remove? @CSEdgeOff please respond so I could make the changes

[github-actions[bot]]

This issue has been automatically closed because it has been inactive for more than 30 days. If you believe this is still relevant, feel free to reopen it or create a new one. Thank you!