Dashboard toggle for Loki distributed strategy Grafana dashboards

Feature Request

Why

There are several Loki Grafana dashboards composed of components reliant on Loki being deployed in a distributed strategy rather than a scalable strategy. Since BB does not support the distributed strategy, the operators should have the ability to reduce dashboard clutter in Grafana.

Proposed Solution

Proposed solutions to explore:

1. Add a toggle to disable the panels in each dashboard that rely on the data provided by Loki while running in distributed mode, and disable them when Loki is running in the scalable strategy.
2. Add a toggle to disable entire dashboards that are mostly comprised of data that Loki only provides in distributed mode. Operators would be able to set the list of dashboards that are not relevant to them.
3. Create separate sets of scalable relevant and distributed relevant dashboards