[ENHANCEMENT] Update info to the right column

[BenGWeeks]

Update the right column of the extension to explain a little more about it, and either:

(1) A link to (https://bitcoinswitch.lnbits.com/) to be able to Flash the ESP32 device, or,
(2) The functionality of https://bitcoinswitch.lnbits.com/ in the extension itself.

FYI @arcbtc