Integrate new GlCard component

What does this MR do?

Integration branch for gitlab-ui!1314 (merged)

Migrates <gl-card> occurrences in:

• integrations/edit/components/jira_issues_fields.vue
• registry/settings/components/settings_form.vue
• monitoring/components/dashboard_panel_builder.vue
• monitoring/components/embeds/embed_group.vue
• analytics/shared/components/metric_card.vue
• security_configuration/dast_site_profiles_form/components/dast_site_validation.vue
• security_configuration/components/auto_fix_settings.vue
• security_dashboard/components/security_reports_summary.vue
• on_demand_scans/components/profile_selector/profile_selector.vue
• on_demand_scans/components/on_demand_scans_form.vue
• iterations/components/iteration_report_summary.vue
• analytics/repository_analytics/components/test_coverage_table.vue
• analytics/repository_analytics/components/download_test_coverage.vue

How to integrate those changes?

The only difference is that the new GlCard component doesn't have a 16px bottom margin anymore, which results in some layouts looking a bit off when there are elements below a GlCard component. When that happens, we should add the .gl-mb-5 utility class where appropriate to restore the necessary spacing between elements.

Screenshots

Area	Before	After
integrations/edit/components/jira_issues_fields.vue
registry/settings/components/settings_form.vue
monitoring/components/dashboard_panel_builder.vue
monitoring/components/embeds/embed_group.vue	See discussion
analytics/shared/components/metric_card.vue
security_configuration/dast_site_profiles_form/components/dast_site_validation.vue
security_configuration/components/auto_fix_settings.vue
security_dashboard/components/security_reports_summary.vue
on_demand_scans/components/profile_selector/profile_selector.vue
on_demand_scans/components/on_demand_scans_form.vue	Same as above	Same as above
iterations/components/iteration_report_summary.vue
analytics/repository_analytics/components/test_coverage_table.vue
analytics/repository_analytics/components/download_test_coverage.vue

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers
• Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team