Add link to online memory editor to the WiFi memory page

[bonelifer]

Add link to online memory editor to the WiFi memory page.
https://esp32-si4732.github.io/ats-mini/memory.html

[max-arnold]

Adding a link makes little sense, because the editor requires USB connection to the receiver to work.

Instead we will make the receiver's own Memory web page work as an editor

[bonelifer]

Ah, didn't know you were going to do that. awesome. That page helped me as mine were all over the place in the slots.