Automatically install PySR at init

gui/app.py

@@ -11,6 +11,8 @@ empty_df = pd.DataFrame(
     }
 )
 
+os.system("bash install_pysr.sh")
+
 def greet(
     file_obj: tempfile._TemporaryFileWrapper,
     col_to_fit: str,
@@ -34,7 +36,6 @@ def greet(
             "Please upload a CSV file!",
         )
 
-    os.system("bash install_pysr.sh")
     os.system(f"python run_pysr_and_save.py --niterations {niterations} --binary_operators '{binary_operators}' --unary_operators '{unary_operators}' --col_to_fit {col_to_fit} --filename {file_obj.name}")
     df = pd.read_csv("pysr_output.csv")
     error_log = open("error.log", "r").read()