Allow users to update their email address (#1745)

* Change email address

* Email confirmation

* Email change test

* Lint

* Schema reset

* Set test email sender

* Select specific user fixture

* Refactor/cleanup

* Remove unused email_confirmation_token

* Current user would never be true

* Fix translation test failures

db/migrate/20250131171943_remove_email_confirmation_token_from_users.rb

@@ -0,0 +1,6 @@
+class RemoveEmailConfirmationTokenFromUsers < ActiveRecord::Migration[7.2]
+  def change
+    remove_index :users, :email_confirmation_token
+    remove_column :users, :email_confirmation_token, :string
+  end
+end