Updated translations

src/screens/Services/ServicesScreen.js

                     marginLeft: 'auto',
                     marginRight: 'auto',
                 }}>
-                    NOT LOGGED IN
+                    {i18n.t("servicesScreen.notLoggedIn")}
                 </Title>
                 <Button
                     icon="login"
                         marginLeft: 'auto',
                         marginRight: 'auto',
                     }}>
-                    LOGIN
+                    {i18n.t("screens.login")}
                 </Button>
             </View>
         )

translations/en.json

   "servicesScreen": {
     "amicale": "The Amicale",
     "students": "Student services",
-    "insa": "INSA services"
+    "insa": "INSA services",
+    "notLoggedIn": "Not logged in"
   }
 }

translations/fr.json

   "servicesScreen": {
     "amicale": "L'Amicale",
     "students": "Services étudiants",
-    "insa": "Services de l'INSA"
+    "insa": "Services de l'INSA",
+    "notLoggedIn": "Non connecté"
   }
 }