[FEATURE] [IMPORTANT] Network selection in GET URL

[Theadri1900]

Is your feature request related to a problem? Please describe.

We can't select the network to connect with the autoconnect URL

Describe the solution you'd like
add "network" variable.

/ulcdoc_interactor.html#network:1&mode:check&kernel:0x99

If the user doesn't have metamask, configure web3 to connect to the right network.
If the user has metamask, you need to check if metamask network = configurated network. If not, then promp a message to say it's the wrong network.

Network:
1 = mainnet
2 = ropsten

if not provided :
Check in which network the smart contract exists.
If on both networks: then promp a message to choose.