fix: update temporal coverages

[vncsna]

Purpose

• Show coverages

Description

• Update temporal coverages

Checklist

• I have reviewed the code changes.
• I have tested the changes locally.
• I have updated the documentation if needed.
• I have added/modified tests to ensure the changes are valid.

Testing and evidence

query all {
  allDataset(first: 20) {
    edges {
      node {
        name
        coverage
      }
    }
  }
  allTable(first: 20) {
    edges {
      node {
        name
        coverage
        fullCoverage
      }
    }
  }
  allColumn(first: 20) {
    edges {
      node {
        name
        coverage
      }
    }
  }
}

Next steps