update default button theme

src/themes/themeConst.js

@@ -76,7 +76,8 @@ export const PNSPS_THEME = createTheme({
                         opacity: 0.75,
                     },
                     '&.MuiButton-root':{
-                        fontSize: FONT_SIZE
+                        fontSize: '1.2rem',
+                        alignItems: 'normal',
                     },
                 }
             }