improve indexer_status method

Author: zargarzadehm

src/node_interface.rs

@@ -318,7 +318,7 @@ impl NodeInterface {
         let full_height = res_json["fullHeight"].as_u64().ok_or(NodeError::FailedParsingNodeResponse(res_json.to_string()))?;
         let indexed_height = res_json["indexedHeight"].as_u64().ok_or(NodeError::FailedParsingNodeResponse(res_json.to_string()))?;
 
-        let is_sync = (full_height as i64 - indexed_height as i64).abs() < 10;
+        let is_sync = full_height.abs_diff(indexed_height) < 10;
         Ok(IndexerStatus {
             is_active: true,
             is_sync,