Add feature steps for editing user steps
user
```ruby
Given(/^that I have a user called "(.*?)" surname "(.*?)" with username "(.*?)" and password "(.*?)"$/) do |firstname, surname, username, password|
  pending # express the regexp above with the code you wish you had
end

When(/^I update firstname to "(.*?)"$/) do |firstname|
  pending # express the regexp above with the code you wish you had
end

Then(/^I expect a search for firstname "(.*?)" to return nil$/) do |firstname|
  pending # express the regexp above with the code you wish you had
end

Then(/^If I search for firstname "(.*?)"$/) do |firstname|
  pending # express the regexp above with the code you wish you had
end

Then(/^I should get a user with firstname "(.*?)" surname "(.*?)" with username "(.*?)"$/) do |firstname, surname, username|
  pending # express the regexp above with the code you wish you had
end```
assistant