Icons not scaling correctly when panel-height is more than 48 px

Submitted by Timo

Assigned to Viktor Odintsev @ninetls

Link to original bug (#14549)

Description

Xfce4-statusnotifier-plugin automatically adds a second line if height of panel is 48 px or more. This is an issue on HiDPI screens because the icons get too small to be useful when the panel does have a regular size. (Noticed on Xubuntu 16.04 as well as 18.04)