feat: Add statistical card to extensibility

[dbadura]

Description

Changes proposed in this pull request:

• Add Statistical Card to extensibility

How to test it

On example of HPA, put it in body section:

      - name: Metrics
        source: status.currentMetrics.resource.current
        widget: StatisticalCard
        mainValue:
          name: Average Value
          source: $item.averageValue
        children:
          - name: AvgUtilization
            source: status.currentMetrics.resource.current.averageUtilizationN  #intentional typo
          - name: Average Utilization
            source: $item.averageUtilization
        targets:
          - location: HorizontalPodAutoscaler
            slot: cards
      - name: Replicas
        source: status
        widget: StatisticalCard
        allNamespaceURL: false
        resourceURL: pods
        mainValue:
          name: Current replicas
          source: $item.currentReplicas
        children:
          - name: Desired replicas
            source: $item.desiredReplicas   

Related issue(s)

#2763

[kyma-bot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[mrCherry97]

When Statistical Card is added threw injection there should be Learn more which is a link to ns all for this resource, or to this resource if it's cluster wide resource.

Or we need to add option to add learn more prop to extensibility to allow the user to modify this link.

[akucharska]

/retest

[mmitoraj]

Suggested change

	The condition List widget renders the conditions as an expandable list with condition details. This widget is primarily designed to be used in overview section **data.details.status**
	The condition List widget renders the conditions as an expandable list with condition details. This widget is primarily designed for the overview section **data.details.status**.

[mrCherry97]

/retest