[FE] Implement export for "security" for group dashboard

Add functionality to make request to the BE API

Reference spike for more info: [FE] Spike on "security" for group dashboard (!192451 - closed)

const svgUrl = this.echartsInstance.getDataURL({
        type: 'svg',
        excludeComponents: ['toolbox', 'dataZoom'],
      });

Data Schema

This is the planned schema. But the field name may change if needed.

{
  report_data: {
    project_security_status: [
      { 
        grade: "F", 
        project_count: 6, 
        projects: [{
          name, 
          href, 
          most_severe_vulnerability: {severity: 'critical', count: 1}
        }] 
      },
    ],
    group_full_path: ''
  }
}

Requirement

1. Payload: need to double check with BE API implementation
2. Make request
3. Add error alert if request fails