Cleanup: rename mcords to mcoords

- 'coords' is an abbreviation for coordinates, not 'cords'.
- Rename 'moves' to 'coords_len'.

source/blender/editors/animation/keyframes_edit.c

@@ -633,7 +633,7 @@ bool keyframe_region_lasso_test(const KeyframeEdit_LassoData *data_lasso, const
     BLI_rctf_transform_pt_v(data_lasso->rectf_view, data_lasso->rectf_scaled, xy_view, xy);
 
     if (BLI_lasso_is_point_inside(
-            data_lasso->mcords, data_lasso->mcords_tot, xy_view[0], xy_view[1], INT_MAX)) {
+            data_lasso->mcoords, data_lasso->mcoords_len, xy_view[0], xy_view[1], INT_MAX)) {
       return true;
     }
   }