Fix background task + socket in services + cleaning

mobile/traque-app/constants/colors.js

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+export const COLORS = {
+    background: '#f5f5f5'
+};

mobile/traque-app/constants/config.js

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+export const SERVER_URL = process.env.EXPO_PUBLIC_SERVER_URL;
+export const SOCKET_URL = process.env.EXPO_PUBLIC_SOCKET_URL;

mobile/traque-app/constants/game.js

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+export const GAME_STATE = {
+    SETUP: "setup",
+    PLACEMENT: "placement",
+    PLAYING: "playing",
+    FINISHED: "finished"
+};
+
+export const ZONE_TYPES = {
+    CIRCLE: "circle",
+    POLYGON: "polygon"
+};

mobile/traque-app/constants/index.js

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+export * from './config';
+export * from './game';
+export * from './map';
+export * from './colors';

mobile/traque-app/constants/map.js

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+export const INITIAL_REGIONS = {
+    PARIS : {
+        latitude: 48.864,
+        longitude: 2.342,
+        latitudeDelta: 0,
+        longitudeDelta: 50
+    }
+};
+
+export const LOCATION_PARAMETERS = {
+    LOCAL: {
+        accuracy: 4, // High
+        distanceInterval: 3, // meters
+        timeInterval: 1000, // ms
+    },
+    SERVER: {
+        accuracy: 4, // High
+        distanceInterval: 5, // meters
+        timeInterval: 5000, // ms
+        showsBackgroundLocationIndicator: true, // iOS only
+        pausesUpdatesAutomatically: false, // (iOS) Prevents auto-pausing of location updates
+        foregroundService: {
+            notificationTitle: "Enregistrement de votre position.",
+            notificationBody: "L'application utilise votre position en arrière plan.",
+            notificationColor: "#FF0000", // (Android) Notification icon color
+        },
+    }
+};
+
+export const TASKS = {
+    BACKGROUND_LOCATION: "background-location-task"
+};