remove unused modules. Fix grammar.

app.py

@@ -5,7 +5,6 @@ import streamlit as st
 from pycaret import regression as reg
 from pycaret import classification as clf
 from sklearn.metrics import mean_absolute_error, max_error, r2_score, mean_squared_error, confusion_matrix, ConfusionMatrixDisplay
-from sklearn.metrics import accuracy_score, auc, recall_score, precision_score, f1_score, cohen_kappa_score
 import matplotlib.pyplot as plt
 import streamlit.components.v1 as components
 import mpld3
@@ -46,7 +45,7 @@ mode_type = st.selectbox("What would you like to use the tool for?", ('Benchmark
 if mode_type == 'Parameter Search (find combination of parameters to get a desired value)': 
      ## Desired Target Value 
     if mod_type == 'classifier':
-        st.write('Parameter search not currently supported with classifier type models.')
+        st.write('Parameter search is not currently supported with classifier type models.')
         st.write('Please refresh page and try again with the supported tasks.')
         exit()