TODO: Update XmlDoc

XmlDoc is left uncompleted, it needs to be finished.
The XmlDoc for `VRChatClientBuilder` has not been finished at all, that needs to be updated.
Also, need to generate better HTML documentation for the library.

Start by locating VRChatClientBuilder and the project’s current XML documentation and HTML documentation generation setup. Review the existing XmlDoc coverage and documentation output; done means VRChatClientBuilder is fully documented and the library’s generated HTML documentation is improved.

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