Add network flag for the init (and interactive)

[omritoptix]

Users should be able to choose amongst the different network options in the init stage. Currently the options should be: devnet (default)

Next step we'll add: localhost (should run mock). Froopyland

[ItayLevyOfficial]

there is currently a --hub flag with devnet and local..?

[mtsitrin]

The mock support for localhost needs to be developed

will be very simple after

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[omritoptix]

@ItayLevyOfficial --hub-network flag where currently only devnet network is supported. devnet network id is devnet_304-1 and devnet rpc default endpoint https://dymension.devnet.api.silknodes.io/