feat: update deployment and service configurations

[khushiiagrawal]

This pull request introduces several improvements to the Kubernetes deployment and service configurations for the web application. The main focus is on enhancing deployment reliability, scheduling, and internal traffic routing. Below are the most important changes grouped by theme:

Deployment strategy and reliability:

• Added a revisionHistoryLimit of 3 to keep a history of previous ReplicaSets for easier rollbacks.
• Configured a RollingUpdate deployment strategy with maxUnavailable: 0 and maxSurge: 1 to ensure zero downtime during updates.

Pod scheduling improvements:

• Introduced podAntiAffinity rules to prefer spreading web pods across different nodes, improving availability in case of node failures.

Service configuration enhancements:

• Added version: v1 label to both frontend and static web services for better version tracking and selection.
• Set internalTrafficPolicy: Cluster on both services to ensure traffic is routed cluster-wide rather than node-local, which can improve load balancing.

[vercel]

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[Arpit529Srivastava]

/lgtm

[Arpit529Srivastava]

nicely done