Create Dracula theme CSS for UI styling

[AciDCooL]

Added a new Dracula theme CSS file with styling for various UI components.

Needs documentation for applying, simple as it is.

Kubernetes:
kustomize:

configMapGenerator:
  - name: luminary-dracula-theme
    files:
      - dracula-theme.css

deployment:

        volumeMounts:
        - name: dracula-theme-vol
          mountPath: /opt/luminary/dracula-theme.css
          subPath: dracula-theme.css
      volumes:
      - name: dracula-theme-vol
        configMap:
          name: luminary-dracula-theme

env var:

        - name: CUSTOM_STYLES
          value: "/dracula-theme.css"