Adding footer section in About-us, Demo-section and models

[DhayanandhS]

As we can see in the Timewarp there is no footer section in any page which makes the user to navigate to the contact us page and view it.

So I would like to add footer section with contact links, page links, back to top and copyright section.

The footer will look similar to this

What problem is this feature trying to solve?

• Allowing users to easily navigate through the website.

How do we know when the feature is complete?

• I can start working on it now. It will be completed soon without any issues.

Can you please assign me this issue under GSSoC as a contributor?

[github-actions]

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