Add "Wallet Connect" & "Execute" buttons to the gnoweb help page

[leohhhn]

Description

We should consider adding a button that will allow you to connect to the website, and actually call exposed functions on the realm you are visiting.

Currently, the help page provides you with CLI commands to call:

The addition would add a page-wide "Connect Wallet" button, and an "Execute" button for each exposed realm function, which would parse the parameters and push a transaction through the connected wallet, such as Adena.

cc @grepsuzette

[thehowl]

Linking with #522

[r3v4s]

looking for something like this? #154

[grepsuzette]

That would be awesome.

[moul]

-> #2799