Add logo and branding to Signed Document email

Regarding the first point, I am still sending emails with Jotform's branding, and I haven't been able to find a way to upload my logo and branding to the email the client would receive.

This is my client would be receiving

I want to send something like this

Hi Cristian,

While the feature you're looking for isn't available at Jotform right now, we've gone ahead and escalated your request to our developers. Exactly when or if it's developed depends on their workload, how viable it is, and how many other users also request it. If there are any updates, we’ll circle back to this thread and let you know.

Thanks for your patience and understanding, we appreciate it.