* refactor: remove base_host retrieval from authentication views
* Removed unnecessary base_host retrieval from GitHub, GitLab, and Google callback endpoints.
* Updated MagicSignUpEndpoint to use get_safe_redirect_url for URL construction.
* Refactored MagicSignInSpaceEndpoint to streamline URL redirection logic.
* refactor: streamline URL redirection in MagicSignInSpaceEndpoint
* Removed redundant base_url retrieval from the exception handling in MagicSignInSpaceEndpoint.
* Enhanced the clarity of URL construction by directly using get_safe_redirect_url.
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