Fix features outdated location during filtering

Resolve 'List Index Out of Range' error in PCC filtering due to
outdated features' locations.

src/napari_psf_extractor/extractor.py

@@ -78,14 +78,14 @@ def extract_psf(min_mass, max_mass, stack, features, wx, wy, wz, pcc_min, usf):
         shape=(wz, wy, wx)
     )
 
-    # Filter locations
-    locations = psfe.localize_psfs(psfs, integrate=False)
-
     # Filter PCC if enabled
     if pcc_min != None:
         features_pearson = filter_pcc(pcc_min, features_extracted, psfs)
         psfs, features_extracted = psfe.extract_psfs(stack, features=features_pearson, shape=(wz, wy, wx))
 
+    # Filter locations
+    locations = psfe.localize_psfs(psfs, integrate=False)
+
     loc_filtered, features_filtered, psfs_filtered = psfe.filt_locations(
         locations,
         features_extracted,