Add email form for recipient registration

[yuetloo]

Changes:

• If the VUE_APP_GOOGLE_SPREADSHEET_ID environment variable is set, users will be asked to provide email on the recipient registration flow. This fixes Add a new step to accept recipient email for the recipient registration process #516

• Added recipient registration form validation

• Removed universal recipient registry, use existing optimistic recipient registry instead

• Moved the transaction submit button on the Metadata form submission widget to the Form Navigation Panel.

[auryn-macmillan]

I wonder if we should either remove the categories or allow the owner to define them somehow? These were specific to the ETHStaker round and might not make sense in other contexts.

[auryn-macmillan]

lgtm

[yuetloo]

I could remove the category for this PR. Allowing owner to define categories is a good idea. In fact, may be have a separate PR to allow owner to define any fields?

…

On Aug 8, 2022, at 10:10 AM, Auryn Macmillan ***@***.***> wrote:  I wonder if we should either remove the categories or allow the owner to define them somehow? These were specific to the ETHStaker round and might not make sense in other contexts. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you were assigned.

[auryn-macmillan]

I could remove the category for this PR.

I think this is fine.

Allowing owner to define categories is a good idea. In fact, may be have a separate PR to allow owner to define any fields?

Yeah, doing it as a separate feature and PR makes sense.