shift + mouse-scroll should side scroll marker chart #5551
Description
Moved from: https://bugzilla.mozilla.org/show_bug.cgi?id=1979194
Typical ui convention is Shift + mouse-scroll should side scroll a very wide UI.
Currently, shift + mouse-scroll does the same thing as Ctrl+mouse-scroll, which zooms in/out.
This may apply to flame chart and other panels as well.
On Linux if that matters.
┆Issue is synchronized with this Jira Task