put sign out back on sessiontsx for now

src/screens/session.tsx

@@ -1,6 +1,7 @@
 import React from "react";
 import { StyleSheet, View } from "react-native";
 import { graph_data_two_measures } from "../../test/mock/charts/mock-data";
+import SignOutButton from "../component/buttons/sign-out";
 import BarGraph from "../component/charts/bar-graph/bar-graph";
 
 // Session Mock - can be used for session summary screen using a query handler component
@@ -9,6 +10,7 @@ export default function SessionScreen() {
 	return (
 		<View style={StyleSheet.absoluteFill}>
 			<BarGraph data={graph_data_two_measures} />
+			<SignOutButton />
 		</View>
 	);
 }