Search delay -> update to 2.4.4

[pcworld]

[Impact]
On Ubuntu 20.04, a search delay was introduced (regression compared to Ubuntu 19.10) with the intent of reducing search results. This caused slower search updates and was reported to xfce bugzilla:
https://bugzilla.xfce.org/show_bug.cgi?id=16731

v2.4.4 of xfce4-whiskermenu-plugin reverts the delay, in particular this commit: https://git.xfce.org/panel-plugins/xfce4-whiskermenu-plugin/commit/?h=v2.4.4&id=4436c526050c4234734577f266ab79e44987b7d0

[Test Case]
Rapidly type in the search box and note how long the results take to update.

[Regression Potential]
Low. There are no changes in upstream 2.4.3 -> 2.4.4 other than this fix and translation updates. In addition, Ubuntu 20.10/Groovy and Debian unstable already use version 2.4.4, and no regressions have been reported, so it seems safe to update.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel Letzeisen (dtl131)]

I threw together a debdiff for potential SRU. I'm rusty at this sort of thing, so if it's utter garbage, go easy on me.

[Daniel Letzeisen (dtl131)]

I've subscribed ubuntu-sru team and edited your original report to the format for SRU: https://wiki.ubuntu.com/StableReleaseUpdates#SRU_Bug_Template
I think that's about all I can do here. I'm not sure if this bug will qualify as important enough, but the regression potential is certainly low. Good luck.