Reorder imports in benchmarks.rs for consistency and clarity

benches/benchmarks.rs

@@ -5,7 +5,7 @@ use criterion::{criterion_group, criterion_main, Criterion};
 use rustframe::{
     frame::{Frame, RowIndex},
     matrix::{BoolMatrix, Matrix, SeriesOps},
-    utils::{BDateFreq, BDatesList},
+    utils::{BDatesList, BDateFreq},
 };
 use std::time::Duration;
 
@@ -254,7 +254,6 @@ fn config_large_arrays() -> Criterion {
         .warm_up_time(Duration::from_millis(200))
 }
 
-
 criterion_group!(
     name = benches_small_arrays;
     config = config_small_arrays();