refactor(search): move query param search model to appropriate file

src/models/search.rs

@@ -1,4 +1,12 @@
-use serde::Deserialize;
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize)]
+pub struct SearchQueryParams {
+   pub query: String,
+   pub facets: String,
+   pub offset: Option<u32>,
+   pub limit: Option<u32>,
+}
 
 #[derive(Deserialize)]
 pub struct SearchResult {