[UX] Do not block UI waiting for the chain

[gagdiez]

Background

We want to start applying good UX practices in blockchain, which means hiding the "slowness" of the chain behind good UI. In our case, a very obvious place where we could implement this is the "Tools" section:

Right now, most of the tools allow you to create something (e.g. an NFT), but wait for confirmation from the chain or external API before showing them, which could take up to 5 seconds

Goal

• Make the FTs created by the user appear immediately
• Make the NFTs created by the user appear immediately
• Develop everything with non-web wallets in mind, such as Meteor or Hot