feat(registration): add email confirmation UI

New ConfirmEmailPage for users to verify their email and set password.
Resend form on registration and error pages. Registration form no
longer asks for a password. Confirmation requires a button click. The
admin list marks unconfirmed requests and offers only delete for them.

src/utils/validation.js

@@ -24,12 +24,16 @@ const displayNameField = z
         message: 'VALIDATION.DISPLAY_NAME_INVALID',
     });
 
-export const registrationSchema = z
+// No password: the address owner chooses it on the confirm page.
+export const registrationSchema = z.object({
+    email: emailField,
+    displayName: displayNameField,
+});
+
+export const confirmEmailSchema = z
     .object({
-        email: emailField,
         password: passwordField,
         passwordConfirmation: z.string().min(1, 'VALIDATION.PASSWORD_CONFIRMATION_REQUIRED'),
-        displayName: displayNameField,
     })
     .refine((d) => d.password === d.passwordConfirmation, {
         path: ['passwordConfirmation'],