Improve delegate UI in Snapshot

[auryn-macmillan]

The current delegate UI on Snaptshot leaves a lot to be desired.

We should:

• [ ] Remove the space-specific toggle (this setting could be moved to the user's "edit settings" view).
• [ ] Allow users to create a "delegate profile"; name, image, and description associated with their account and specific to the space. Name, image, and descriptions should fallback on ENS record equivalents (ENS reverse record, avatar, description), then on address and blockie.
• [ ] Show a list of all delegates, sorted by total delegated vote weight.
• [ ] Allow users to search for delegates by entering a name, ENS handle, or ethereum address.
• [ ] Allow users to select existing delegate or delegate to a custom address
• [ ] Ability for a user to opt-out / resign from being delegated to.
• [ ] 🌮 a delegate profile that shows a breakdown of the accounts delegated to the given account

Tally's UI is good inspiration.

[auryn-macmillan]

Need a list of delegations in a context and global delegations. Then need to calculate voting power of each delegate.