Collectd graphs should be paginated

Some collectd data sources can contain thousands or tens of thousands of metrics. Example:

find /opt/collectd/rrd/c01/ceph-* -type f |wc -l
8143

Currently displaying "Collectd" -> "Ceph" on this host produces an absolutely massive page with >32k graphs which brings browsers to their knees even on a modern computer. The page is currently totally unusable and cannot even be scrolled down.

There should be a configurable paging on Collectd graphs, similar to how Obesrvium "native metrics" are paginated.

A good default might be 100 metrics (400 graphs) per page?