Add a API entry point to get all tags

backend/src/services/ron/mod.rs

@@ -1,11 +1,10 @@
 use axum::{
     debug_handler,
-    extract::{Extension, Path, Query, State},
+    extract::{Extension, Path, State},
     http::{HeaderMap, StatusCode},
     response::{IntoResponse, Result},
 };
 use axum_extra::extract::cookie::{Cookie, CookieJar, SameSite};
-use common::ron_api;
 
 use crate::{
     app::Context,