Improve navigation by using Nextjs Link component

[inezabonte]

Describe the bug A clear and concise description of what the bug is. Currently the navigation between pages is linked using the basic html anchor tags which loads the page a fresh whenever you click the link and it's kinda slow

To Reproduce Steps to reproduce the behavior:

1. Go to the homepage
2. Try navigating between the following pages [homepage,about, signup]

Expected behavior Instant page load due to the use of Link component from Nextjs

[inezabonte]

I'd be happy to work on this. :)

[ijemmao]

@inezabonte this looks great! lmk if you need any more context on this!

[ijemmao]

I'm closing this ticket since it's a bit outdated, we're working on a new website design if you would like to be a part of that project @inezabonte