Penambahan metode login dengan menerapkan EULA di awal

Add:
app/eula.tsx
screens/Authentication/EULAView.tsx

Fix:
- context/AuthContext.tsx
- screens/Authentication/RegisterView.tsx
- screens/RootLayout/AppRoot.tsx
- service/api-config.ts

### No Issue

screens/RootLayout/AppRoot.tsx

@@ -15,6 +15,7 @@ export default function AppRoot() {
           name="index"
           options={{ title: "", headerBackVisible: false }}
         />
+        <Stack.Screen name="eula" options={{ title: "Terms & Conditions", headerBackVisible: false }} />
         <Stack.Screen name="+not-found" options={{ title: "" }} />
         <Stack.Screen
           name="verification"