fix(dev): validate in case its exception to not show messaging

Author: tverney

plugins/amazonq/chat/jetbrains-community/src/software/aws/toolkits/jetbrains/services/amazonqFeatureDev/controller/FeatureDevController.kt

@@ -362,7 +362,7 @@ class FeatureDevController(
         chatSessionStorage.deleteSession(tabId)
 
         newTabOpened(tabId)
-        if (isException !== null && isException == true) {
+        if (isException !== null && isException != true) {
             messenger.sendAnswer(
                 tabId = tabId,
                 messageType = FeatureDevMessageType.Answer,