Add a vector db content page

[gcapuzzi]

Add a vector db content page that shows the FAISS content.

It should be possible to search for a string in the FAISS content.

[sancheet230]

@gcapuzzi @swaptr submitted a PR addressing this issue, you can review it whenever you're free

[gcapuzzi]

Can we make search try to looking for into metadata too?

[sancheet230]

@gcapuzzi yup we can