feat(store): prevent deletion of active strategies and update translations (#1461)

Co-authored-by: Dean <afei.wuhao@gmail.com>

store/strategy.go

@@ -444,6 +444,9 @@ func (s *StrategyStore) Delete(userID, id string) error {
 		if st.IsDefault {
 			return fmt.Errorf("cannot delete system default strategy")
 		}
+		if st.IsActive {
+			return fmt.Errorf("cannot delete active strategy")
+		}
 	}
 
 	// Check if any trader references this strategy