little bug with 's' and the end of units

Author: Jgmedina95

mdagent/tools/base_tools/simulation_tools/setup_and_run.py

@@ -1314,7 +1314,8 @@ def _parse_cutoff(self, cutoff):
 
         # Remove spaces and convert to lowercase for easier parsing
         cutoff = cutoff.replace(" ", "").lower()
-
+        if cutoff.endswith("s"):
+            cutoff = cutoff[:-1]
         # Check for multiplication symbol and split if necessary
         if "*" in cutoff:
             # Split on the '*' and extract the numerical part and the unit part