chore: fmt imports

[0x676e67]

This pull request includes several changes to improve the consistency and functionality of the HTTP context configuration across different browser impersonations. The most significant changes involve refactoring function names and parameters to enhance clarity and maintainability.

Refactoring for improved clarity and consistency:

• src/imp/chrome.rs, src/imp/firefox.rs, src/imp/okhttp.rs, src/imp/safari.rs: Renamed the function http_config to http_context and updated the function parameters to use ImpersonateOption instead of individual parameters for skip_http2 and skip_headers. [1] [2] [3] [4] [5]

• src/imp/macros.rs: Updated the impersonate_match macro to use the new ImpersonateOption parameter instead of separate parameters for os, skip_http2, and skip_headers.

• src/imp/mod.rs: Modified the HttpContextProvider implementation to use the new http_context function and updated the documentation to reflect the changes. [1] [2] [3]

Dependency and import adjustments:

• src/client/http.rs: Reorganized and cleaned up the import statements to ensure all necessary dependencies are included and unused ones are removed.