Fix(suite2p_loader): Return nan array if "VCorr" not in suite2p output

Author: kushalbakshi

element_interface/suite2p_loader.py

@@ -247,7 +247,7 @@ def max_proj_image(self):
 
     @property
     def correlation_map(self):
-        return self.ops["Vcorr"]
+        return self.ops.get("VCorr", np.full_like(self.mean_image, np.nan))
 
     @property
     def alignment_channel(self):