setting header color for android dark

app/mobile/src/context/useAppContext.hook.js

@@ -139,6 +139,7 @@ export function useAppContext() {
         console.log(err);
       }
       await clearSession();
+      access.current = null;
       await store.actions.clearSession();
       updateState({ loggingOut: false });
     },

app/mobile/src/session/contact/Contact.styled.js

@@ -55,6 +55,7 @@ export const styles = StyleSheet.create({
     fontSize: 18,
     overflow: 'hidden',
     textAlign: 'center',
+    color: Colors.text,
   },
   camera: {
     position: 'absolute',

app/mobile/src/session/conversation/Conversation.styled.js

@@ -34,6 +34,7 @@ export const styles = StyleSheet.create({
     flexShrink: 1,
     paddingLeft: 16,
     paddingRight: 16,
+    color: Colors.text,
   },
   titlebutton: {
     paddingRight: 8,