Dashboard Grid/Metrics: Allow selecting portion of graph

[vmihailenco]

Discussed in #328

^{Originally posted by natehitze-eventlink February 2, 2024}
Sometimes I'm looking at a wide range of time to notice a spike in metrics and then need to narrow in around the time of the spike. It would be nice to be able to select a portion of the graph to set the start/end times for the filter. Right now I have to hover my mouse over the graph to the find the times and then type them into the "From date" and "To date" filter.