Add "Test Connection" Button Before Saving New Connection

Hi maintainers,

I would like to propose a new feature for AnotherRedisDesktopManager.

Currently, when users create a new connection through the "New Connection" form, they have to save the connection first before knowing whether the configuration is valid or not. This can be inefficient, especially if there is a typo in the host, port, password, or other connection settings.

I would like to request the addition of a "Test Connection" button in the "New Connection" form. The purpose of this feature would be:

• Allow users to validate the connection settings before saving.
• Provide immediate feedback (success or error message).
• Improve user experience by reducing trial-and-error configuration.

Expected behavior:

• After filling in the connection details, the user can click "Test Connection".
• The system attempts to connect using the provided configuration.
• A success or error message is displayed without saving the connection.
• The user can then decide to save or modify the configuration.

I believe this feature would significantly improve usability, especially for users managing multiple Redis instances.

Thank you for considering this request.