fix: set connected false in endConnection (#2807)

### Summary

This PR addresses an issue with the `currentPurchase` status not updating correctly in the library after a successful in-app purchase. The problem occurs because the `purchaseListener` is only connected once when the app is first connected, and not after that. This requires users to repeat the purchase process by killing the app.

### Problem Description

After a successful in-app connection, the store purchase completes, but the `currentPurchase` status does not update. This is likely due to the `purchaseListener` being connected based on the `connected` value inside `useEffect`. The `connected` value changes from `false` to `true` only when the app first connects, and not subsequently, preventing proper subscription to the current order status.

### Solution

To resolve this, I added code inside the `endConnection` method to set `connected` to `false`. This ensures that every subscription updates correctly by changing `connected` to `true` when accessing the order page and to `false` when accessing `endConnection`. This approach has been tested and works as expected on both iOS and Android.

### Related Issue

This issue appears to be related to the following issue: [#2700](#2700).

### Conclusion

I hope this PR helps everyone experiencing this issue. Thank you for considering this improvement.

src/hooks/useIAP.ts

@@ -52,6 +52,7 @@ export const useIAP = (): IAP_STATUS => {
     currentPurchase,
     currentPurchaseError,
     initConnectionError,
+    setConnected,
     setProducts,
     setSubscriptions,
     setAvailablePurchases,
@@ -119,7 +120,10 @@ export const useIAP = (): IAP_STATUS => {
   );
 
   useEffect(() => {
+    setConnected(true);
+
     return () => {
+      setConnected(false);
       setCurrentPurchaseError(undefined);
     };
     // eslint-disable-next-line react-hooks/exhaustive-deps

src/hooks/withIAPContext.tsx

@@ -28,6 +28,7 @@ type IAPContextType = {
   currentTransaction?: TransactionSk2;
   currentPurchaseError?: PurchaseError;
   initConnectionError?: Error;
+  setConnected: (connected: boolean) => void;
   setProducts: (products: Product[]) => void;
   setSubscriptions: (subscriptions: Subscription[]) => void;
   setPurchaseHistory: (purchaseHistory: Purchase[]) => void;
@@ -86,6 +87,7 @@ export function withIAPContext<T>(Component: React.ComponentType<T>) {
         currentTransaction,
         currentPurchaseError,
         initConnectionError,
+        setConnected,
         setProducts,
         setSubscriptions,
         setPurchaseHistory,
@@ -104,6 +106,7 @@ export function withIAPContext<T>(Component: React.ComponentType<T>) {
         currentTransaction,
         currentPurchaseError,
         initConnectionError,
+        setConnected,
         setProducts,
         setSubscriptions,
         setPurchaseHistory,