fix doc visibility of re-exported exported macro_rules macros

[GlenDC]

In sub rama crates such as rama-http I have doc-hidden exported macro_rules macros such as rama_http::service::web::match_service. These show up in the rama-http docs but they do not show in rama where rama_http::service is re-exported as rama::http::service.

This results also in the 404: https://ramaproxy.org/docs/rama/http/service/web/macro.match_service.html
From page https://ramaproxy.org/docs/rama/http/service/web/index.html

Asked in rust programming language discord but they didn't seem to know either
So will have to file a bug instead...

[GlenDC]

rust bug ticket: rust-lang/rust#129982

[GlenDC]

Removing this from 0.2 as the resolution speed is dependent on the rust team.