fix: Make sure empty VERSION_EXTRA strings are ignored

Also updates built & removes unused optional features

src/web/mod.rs

@@ -6,7 +6,7 @@ use axum::{
 	response::{Html, IntoResponse, Response},
 	routing::get,
 };
-use conduwuit_build_metadata::{GIT_REMOTE_COMMIT_URL, GIT_REMOTE_WEB_URL, VERSION_EXTRA};
+use conduwuit_build_metadata::{GIT_REMOTE_COMMIT_URL, GIT_REMOTE_WEB_URL, version_tag};
 use conduwuit_service::state;
 
 pub fn build() -> Router<state::State> {

src/web/templates/_layout.html.j2

@@ -18,7 +18,7 @@
     {%~ block footer ~%}
         <footer>
             <p>Powered by <a href="https://continuwuity.org">Continuwuity</a>
-                {%~ if let Some(version_info) = VERSION_EXTRA ~%}
+                {%~ if let Some(version_info) = self::version_tag() ~%}
                     {%~ if let Some(url) = GIT_REMOTE_COMMIT_URL.or(GIT_REMOTE_WEB_URL) ~%}
                         (<a href="{{ url }}">{{ version_info }}</a>)
                     {%~ else ~%}