Weird marking when using annotations

[eh-am]

I haven't investigated this yet, but sometimes when there's an annotation (which is in turn a marker internally), a weird handler shows up.

I think it has something to do with the selection plugin (https://github.com/pyroscope-io/pyroscope/blob/main/webapp/javascript/components/TimelineChart/Selection.plugin.ts)

Maybe this will be irrelevant after #1495, but who knows.

[eh-am]

@pavelpashkovsky commented that #1489 (comment)

this problem might be a bit deeper, I have no idea why, but these annotation marks (#1505) looks like vertical selection lines in left/right timelines on ComparisonView page. Just take look at them more attentively. Dotted line + black draggable area. I added this appearance only for left/right single timeline selection lines, is there chance you pass some incorrect props? any kind of props conflict? But no idea what they are doing in annotations PR.