[Docs] Update AKS Documentation for Service-level Port Forwarding

[aboobakersiddiqr63]

Issue Description:
The current documentation for AKS (Azure Kubernetes Service) in the Supported providers section contains instructions for port-forwarding that involve a complex process of identifying and selecting a specific pod. This process can be streamlined and improved to enhance user-friendliness.

Proposed Change:

Introduction of Service-level Port Forwarding: The documentation should be updated to include clear instructions on how to perform service-level port forwarding. This change will simplify the process for users and eliminate the need to manually identify and select individual pods.

Current State

export POD_NAME=$(kubectl get pods --namespace meshery -l "app.kubernetes.io/name=meshery,app.kubernetes.io/instance=meshery" -o jsonpath="{.items[0].metadata.name}")
kubectl --namespace meshery port-forward $POD_NAME 9081:8080

Desired State

kubectl port-forward svc/meshery --namespace meshery 9081:9081

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[welcome]

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[shubhankar-mern]

@aboobakersiddiqr63 assign this to me

[aboobakersiddiqr63]

@shubhankar-mern contributor needs to review the proposal and should assign, I would request the assignee to assign this task to @shubhankar-mern :)

[leecalcote]

Thank you, gents. 👍