Update the monitoring/embed.vue component

What does this MR do?

This changes the embed charts component internals to use the panel_type.vue component, so it can render all the charts that we support for our monitoring dashboard.

Screenshots

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry (https://docs.gitlab.com/ee/development/documentation/workflow.html#when-documentation-is-required))
• Code review guidelines
• Merge request performance guidelines

related to: #31736 (closed)