Fix copy picture to destination bug caused by shutil.move. Switched to...

Fix copy picture to destination bug caused by shutil.move. Switched to shutil.copy2 followed by os.remove.

plotid/publish.py

@@ -92,7 +92,9 @@ def publish(src_datapath, dst_path, figure, plot_name, data_storage):
             # Copy script that calls this function to folder
             shutil.copy2(sys.argv[0], dst_path_invisible)
             # Copy plot file to folder
-            shutil.move(plot_path, dst_path_invisible)
+            if os.path.isfile(plot_path):
+                shutil.copy2(plot_path, dst_path_invisible)
+                os.remove(plot_path)
         case _:
             raise ValueError('The data storage method {data_storage} '
                              'is not available.')