Custom Favicon for pages/posts

- [x ] I have searched for similar features requests in both open and closed tickets and cannot find a duplicate.
- [ x] The feature is still missing in the latest stable version of Elementor ( Elementor Pro. )

**What problem is your feature request going to solve? Please describe.**
I create landing pages for clients, typically one page with form, for various companies and organizations. I have used other landing page creators like Landingi, etc. but Elementor is far superior for my needs. With that in mind, I can't see and would like to see a way to furnish a custom favicon for each page separately for each client I have. Landingi has this ability, but Elementor does not, and I'm using my own company's favicon instead. I don't want to confuse my client's prospects by having a separate favicon (my own) for their pages.

**Describe the solution you'd like**
Ability to add custom favicon per page or per post.

**Describe alternatives you've considered**
I've considered going back to another landing page builder. I don't want to. I love Elementor.

**Additional context**
Thanks!