fix more clippy lints (part 1)

Signed-off-by: strawberry <strawberry@puppygock.gay>

src/api/server_server.rs

@@ -95,7 +95,7 @@ impl FedDest {
     fn into_uri_string(self) -> String {
         match self {
             Self::Literal(addr) => addr.to_string(),
-            Self::Named(host, ref port) => host + port,
+            Self::Named(host, port) => host + &port,
         }
     }