Fixes the refresh token process

[cjaliaga]

This pull request includes changes to the aioaquarea module to improve the authentication process and code readability. The most important changes include the addition of a new constant AQUAREA_SERVICE_AUTH0_CLIENT, refactoring of the request method, introduction of private methods to handle token validation and login process, and the use of the new constant in the async def _login_production(self) -> None: method.

Here are the key changes:

Changes to constants:

• aioaquarea/const.py: Added a new constant AQUAREA_SERVICE_AUTH0_CLIENT to store the Auth0 client details.

Refactoring of the request method:

• aioaquarea/core.py: Refactored the request method to use a new private method __contains_valid_token to check if the data contains a valid token. [1] [2]

Introduction of private methods:

• aioaquarea/core.py: Introduced new private methods __login_demo, __login_production, __complete_login, and __is_final_step to handle the login process and check the final step of the login process. [1] [2] [3] [4]

Changes to the async def _login_production(self) -> None: method:

• aioaquarea/core.py: Updated the async def _login_production(self) -> None: method to use the new constant AQUAREA_SERVICE_AUTH0_CLIENT and the newly introduced private methods.