swipe-tracker: Reject drags in window's draggable areas

With this it's not necessary to disable swipes in leaflets inside titlebars
anymore.

Signed-off-by: Alexander Mikhaylenko <alexm@gnome.org>
11 jobs for wip/exalm/title-drags in 13 minutes and 59 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #259943
librem5
api-visibility

00:02:38

passed #259945
librem5
build-debian-clang

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passed #259944
librem5
build-debian-gcc

00:02:58

passed #259946
librem5
build-fedora-gcc

00:03:37

 
  Test+Docs
passed #259947
librem5
build-gtkdoc

00:02:03

passed #259948
librem5
unit-test

00:01:59

43.4%
 
  Package
passed #259949
librem5
package-debian-buster

00:01:58

passed #259950
librem5:arm64
package-debian-buster:arm64

00:06:00

passed #259951
flatpak
package-flatpak

00:01:42

 
  Test Package
passed #259952
librem5
autopkgtest-debian-buster-package

00:01:57

passed #259953
librem5
lintian-debian-buster-package

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