feat: add users endpoint and add me and uuid under it

Adds a users endpoint that returns all users on the server, will require instance permissions in future.
Place previous user requests under users to avoid having multiple endpoints.

src/api/v1/mod.rs

@@ -2,11 +2,11 @@ use actix_web::{Scope, web};
 
 mod auth;
 mod stats;
-mod user;
+mod users;
 
 pub fn web() -> Scope {
     web::scope("/v1")
         .service(stats::res)
         .service(auth::web())
-        .service(user::res)
+        .service(users::web())
 }