💡[FEATURE]: Addition of error 404 page.

[taneeshaa15]

Is your feature request related to a problem? Please describe.
Yes, it will redirect the user to homepage when the user mistypes the url or pages have been removed.

Describe the solution you'd like
I will add error 404 page to notify the users about the error.

Describe alternatives you've considered
The user is redirected to homepage from where they can access other resources.

Additional context

It will somehow look like this (not exactly).

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[taneeshaa15]

@codewarnab Please assign this issue to me under gssoc'24 with suitable labels of levels.