fix stringee listener problems when restart app

Author: william-normann

android/src/main/java/com/stringeereactnative/RNStringeeClientModule.java

@@ -42,9 +42,9 @@ public void init() {
         mClient = mStringeeManager.getClient();
         if (mClient == null) {
             mClient = new StringeeClient(getReactApplicationContext());
-            mClient.setConnectionListener(this);
         }
 
+        mClient.setConnectionListener(this);
         mStringeeManager.setClient(mClient);
     }