Change where ENS info is displayed

[eccogrinder]

Is your feature request related to a problem? Please describe.
This is a request that the information about the ENS name is handled more intuitively in the UI. Currently, ENS information is only available in the "Settings" tab, even on publications not on mainnnet.

Describe the solution you'd like

1. Remove the option to link a publication to the ENS name on non-mainnet chains. Currently, it asks you to switch to mainnet, but even if a user does, they can't link the publication there and will be asked to switch back if they are attempting to interact with their non-mainnet publication. Here's the text:

Network Switch Required
You are currently connected to a network other than mainnet. To proceed with transactions involving ENS domains, please switch to mainnet.

2. Add ENS information during publication creation for mainnet. This is related in part to issue Option to choose chain while creating publication #258

[cedricwaxwing]

Good catch! I like your suggestions here too.