Refactoring test signup

[marcobrunodev]

Is your feature request related to a problem? Please describe.
The test is very slow.

Describe the solution you'd like
Refactoring the test cypress/integration/pages/signup.test.js with the goal to leave him it faster.

Describe alternatives you've considered
Verify the test done by @Santiael: cypress/integration/pages/Login/*.test.js.

Additional context
No.