Show empty plot instead of "No results found"

[rashidkpc]

Currently if no events are found we show a message that says "No results found". I suggest we'd be better served with an empty plot. This seems like a more generic way to say "No data to show here" as there may be situations in which hits exist, but aren't suitable for display.

For example, when setting a min on an XY plot. Perhaps I've set min to 400

Now lets say no bucket exceeds 400, The preferred behavior should be this:

[rashidkpc]

Related #3682

[jccq]

It would be great to have this as an option while one could still visualize a N/A or ? instead of the empty graph. Might be more appropriate in some cases

[ghudgins]

@gvnmagni we found this chart skeleton issue when grooming. represents some of the improvements we had in mind 👀

[stratoula]

Closing as duplicate of #121309