Require Images for Testimonials on CoCalc Landing Page

[Blaec-CoCalc]

Is your feature request related to a problem? Please describe.
The current testimonials on the CoCalc landing page lack visual representation, which can make them seem less credible and engaging.

Describe the solution you'd like
I would like to require an image of the institution or individual for each testimonial on the CoCalc landing page. This addition would enhance the authenticity and visual appeal of the testimonials.

Additional context
Having an image associated with each testimonial could make them more visually appealing and credible, capturing the audience’s attention effectively. Including images could lead to higher trust and engagement from new visitors.

[williamstein]

We have two with images and the rest don't: https://cocalc.com/testimonials

Should we just completely delete the testimonials stuff? It seems pretty pointless, and if you're saying we should remove all the ones from he last 7 years, it seems even more pointless.