Dashboard: Use SingleStatComponent

What does this MR do and why?

Dashboard: Use SingleStatComponent

Updates the stats components on the dashboard page to use the new SingleStatComponent

• Uses SingleStatComponent
• Updates the SingleStatComponent to add a slot for title and stats_count

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Screenshots or screen recordings

Before	After

How to set up and validate locally

1. Go to http://gdk.test:3000/admin
2. Check the stats

Related to Add GlSingleStat to haml (!142682 - merged), #424397 (closed)