Feature Request: Add total videos per profile

[ZackWB]

Issue

Currently, SponsorBlock Server tracks total segments for the entire server, as well as segments per profile (associated with a public User ID). However, there is no equivalent statistic for videos per profile. As a result, users cannot see how many videos each profile has contributed overall, making it harder to measure activity at the video level.

I propose adding a statistic that shows the total number of videos contributed by each profile, similar to how total segments per profile are displayed today.

Benefits

• Complements the existing segments per profile metric.
• Helps identify which profiles are contributing the most videos.
• Improves transparency and community recognition.

Additional Context

This would expand on the existing statistics that SponsorBlock offers without introducing new categories of data — it parallels features using data already available for segments.

I am attempting to implement this using the database directly via SQL, and plan to use the UNIQUE query to ensure accurate counts per profile, as was suggested.