add new cover images

Author: HarshCasper

content/en/getting-started/_index.md

@@ -24,4 +24,4 @@ LocalStack also provides additional features to make your life as a cloud develo
 ## Ran into trouble?
 
 We strive to make it as easy as possible for you to use LocalStack, and we are very grateful for any feedback.
-If you run into any issues or problems with this guide, please [submit an issue](https://github.com/localstack/docs/issues). 
+If you run into any issues or problems with this guide, please [submit an issue](https://github.com/localstack/docs/issues).

content/en/tutorials/elb-load-balancing/elb-load-balancing-featured-image.jpg

@@ -21,7 +21,7 @@ tags:
 - JavaScript
 - serverless-localstack plugin
 pro: true
-leadimage: "elb-load-balancing-featured-image.jpg"
+leadimage: "elb-load-balancing-featured-image.png"
 ---
 
 [Elastic Load Balancer (ELB)](https://aws.amazon.com/elasticloadbalancing/) is a service that distributes incoming application traffic across multiple targets, such as EC2 instances, containers, IP addresses, and Lambda functions. ELBs can be physical hardware or virtual software components. They accept incoming traffic and distribute it across multiple targets in one or more Availability Zones. Using ELB, you can quickly scale your load balancer to accommodate changes in traffic over time, ensuring optimal performance for your application and workloads running on the AWS infrastructure.

content/en/tutorials/elb-load-balancing/elb-load-balancing-featured-image.png

@@ -25,7 +25,7 @@ tags:
 - Simple Notification Service
 - CloudFormation
 pro: true
-leadimage: "java-notification-app-featured-image.jpg"
+leadimage: "java-notification-app-featured-image.png"
 ---
 
 Java is a popular platform for cloud applications that use Amazon Web Services.

content/en/tutorials/elb-load-balancing/index.md

@@ -20,7 +20,7 @@ tags:
 - Container
 - Container Image
 pro: true
-leadimage: "lambda-ecr-container-images-featured-image.jpg"
+leadimage: "lambda-ecr-container-images-featured-image.png"
 ---
 
 [Lambda](https://aws.amazon.com/lambda/) is a powerful serverless compute system that enables you to break down your application into smaller, independent functions. These functions can be deployed as individual units within the AWS ecosystem. Lambda offers seamless integration with various AWS services and supports multiple programming languages for different runtime environments. To deploy Lambda functions programmatically, you have two options: [uploading a ZIP file containing your code and dependencies](https://docs.aws.amazon.com/lambda/latest/dg/configuration-function-zip.html) or [packaging your code in a container image](https://docs.aws.amazon.com/lambda/latest/dg/gettingstarted-images.html) and deploying it through Elastic Container Registry (ECR).

content/en/tutorials/java-notification-app/index.md

@@ -21,7 +21,7 @@ tags:
 - Lambda Layers
 - Reproducible
 pro: true
-leadimage: "reproducible-machine-learning-cloud-pods-featured-image.jpg"
+leadimage: "reproducible-machine-learning-cloud-pods-featured-image.png"
 ---
 
 [LocalStack Cloud Pods]({{< ref "user-guide/tools/cloud-pods" >}}) enable you to create persistent state snapshots of your LocalStack instance, which can then be versioned, shared, and restored. It allows next-generation state management and team collaboration for your local cloud development environment, which you can utilize to create persistent shareable cloud sandboxes. Cloud Pods works directly with the [LocalStack CLI]({{< ref "references/localstack-cli-manual" >}}) to save, merge, and restore snapshots of your LocalStack state. You can always tear down your LocalStack instance and restore it from a snapshot at any point in time.

content/en/tutorials/java-notification-app/java-notification-app-featured-image.jpg

@@ -19,7 +19,7 @@ tags:
 - Static-Website
 - tflocal CLI
 pro: false
-leadimage: "s3-static-website-terraform-featured-image.jpg"
+leadimage: "s3-static-website-terraform-featured-image.png"
 ---
 
 [AWS Simple Storage Service (S3)](https://aws.amazon.com/s3/) is a proprietary object storage solution that can store an unlimited number of objects for many use cases. S3 is a highly scalable, durable and reliable service that we can use for various use cases: hosting a static site, handling big data analytics, managing application logs, storing web assets and much more!

content/en/tutorials/java-notification-app/java-notification-app-featured-image.png

@@ -20,7 +20,7 @@ tags:
 - Schema Evolution
 - Java
 pro: true
-leadimage: "schema-evolution-glue-msk-featured-image.jpg"
+leadimage: "schema-evolution-glue-msk-featured-image.png"
 ---
 
 [Apache Kafka](https://kafka.apache.org/) is an open-source distributed event store and stream-processing platform. It is used to capture data generated by producers and distribute it among its consumers. Kafka is known for its scalability, with reports of production environments scaling to [trillions of messages per day](https://engineering.linkedin.com/blog/2019/apache-kafka-trillion-messages). With [Amazon Managed Streaming for Apache Kafka (MSK)](https://aws.amazon.com/msk/), AWS provides a service to provision Apache Kafka clusters easily.