change size of st tabs

modules/navbar.py

@@ -21,7 +21,7 @@ def show_navbar():
     css = '''
     <style>
         .stTabs [data-baseweb="tab-list"] button [data-testid="stMarkdownContainer"] p {
-        font-size:2rem;
+        font-size:1.5rem;
         }
     </style>
     '''