preferences-window: Add the 'search-enabled' property

This allows disabling search.

Fixes Librem5/libhandy#157.
11 jobs for preferences-disable-search in 20 minutes and 5 seconds (queued for 4 minutes and 1 second)
Status Job ID Name Coverage
  Build
passed #254309
librem5
api-visibility

00:02:48

passed #254311
librem5
build-debian-clang

00:04:25

passed #254310
librem5
build-debian-gcc

00:03:09

passed #254312
librem5
build-fedora-gcc

00:03:27

 
  Test+Docs
passed #254313
librem5
build-gtkdoc

00:02:30

passed #254314
librem5
unit-test

00:02:26

42.2%
 
  Package
passed #254315
librem5
package-debian-buster

00:02:39

passed #254316
librem5:arm64
package-debian-buster:arm64

00:06:10

failed #254317
flatpak allowed to fail
package-flatpak

00:00:09

 
  Test Package
passed #254318
librem5
autopkgtest-debian-buster-package

00:02:21

passed #254319
librem5
lintian-debian-buster-package

00:00:54

 
Name Stage Failure
failed
package-flatpak Package There has been a runner system failure, please try again
Running with gitlab-runner 12.6.0 (ac8e767a)
on arm01-runner 53gNDtDb
ERROR: Preparation failed: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? (executor_docker.go:982:0s)
Will be retried in 3s ...
ERROR: Preparation failed: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? (executor_docker.go:982:0s)
Will be retried in 3s ...
ERROR: Preparation failed: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? (executor_docker.go:982:0s)
Will be retried in 3s ...
ERROR: Job failed (system failure): Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? (executor_docker.go:982:0s)