fixup! Make interface for enqueueing with multiple queue

These changes will allow integrators fetching available
queues without the needs to configure SDK with specific
queue id.

Deprecated:
- Interface for configuration SDK with queue ID

Introduced:
- Configuration method without queue id
- Starting engagement with queue ids

MOB-2594

GliaWidgets/Public/Glia/Glia+StartEngagement.swift

@@ -30,7 +30,7 @@ extension Glia {
     ) throws {
         // `interactor?.queueIds.isEmpty == false` statement is needed for integrators who uses old interface
         // and pass queue identifier through `configuration` function.
-        guard !queueIds.isEmpty || interactor?.queueIds.isEmpty == false else { throw GliaError.startEngagementWithNoQueueIds }
+        guard !queueIds.isEmpty || interactor?.queueIds.isEmpty == false else { throw GliaError.startingEngagementWithNoQueueIdsIsNotAllowed }
         guard engagement == .none else { throw GliaError.engagementExists }
         guard let interactor = self.interactor else { throw GliaError.sdkIsNotConfigured }
         if let engagement = environment.coreSdk.getCurrentEngagement(),

GliaWidgets/Public/GliaError.swift

@@ -6,5 +6,5 @@ public enum GliaError: Error {
     case callVisualizerEngagementExists
     case configuringDuringEngagementIsNotAllowed
     case clearingVisitorSessionDuringEngagementIsNotAllowed
-    case startEngagementWithNoQueueIds
+    case startingEngagementWithNoQueueIdsIsNotAllowed
 }