view: use explicit struct instantiation

Co-authored-by: Lúcás Meier <[email protected]>
Signed-off-by: Erwan Or <[email protected]>

crates/view/src/client.rs

@@ -709,7 +709,7 @@ where
                 tonic::Request::new(pb::OwnedPositionIdsRequest {
                     trading_pair: trading_pair.map(TryInto::try_into).transpose()?,
                     position_state: position_state.map(TryInto::try_into).transpose()?,
-                    ..Default::default()
+                    subaccount: None,
                 }),
             );