Remove `status-list-server-chart-local` and adapt `status-list-server-chart` for local development

[Awambeng]

The current project includes two Helm charts:

1. helm/status-list-server-chart: The main chart for production deployments.
2. helm/status-list-server-chart-local: A separate chart specifically for local development.

The existence of a dedicated local chart is not ideal and introduces maintenance overhead. The goal is to remove helm/status-list-server-chart-local and configure the main helm/status-list-server-chart to support local development through a specific values.yaml file.

Estimated time: 1day