NTP-56704 | add polling delay for rewards api (#15831)

android/navi-common/src/main/java/com/navi/common/utils/NaviApiPoller.kt

@@ -19,6 +19,7 @@ import kotlinx.coroutines.flow.channelFlow
 import kotlinx.coroutines.flow.flowOn
 
 class NaviApiPoller(
+    private val initialDelay: Long = 0,
     private val repeatInterval: Duration,
     private val onPollCallback: () -> Unit = {},
     private val onStopPolling: () -> Unit = {},
@@ -36,12 +37,12 @@ class NaviApiPoller(
     }
 
     @OptIn(DelicateCoroutinesApi::class)
-    fun startPolling(
+    suspend fun startPolling(
         onTimeout: (suspend () -> Unit)? = null,
         onPollExecute: suspend () -> Any,
     ): Flow<Any> {
+        delay(this.initialDelay)
         initStartPolling()
-
         return channelFlow {
                 while (!isClosedForSend && isPollingExternalConditionSatisfied(onTimeout)) {
                     onPollCallback.invoke()