settings-dialog: Set appropriate title on page change

7 jobs for wip/sadiq/update-settings-title in 8 minutes and 25 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #369183
librem5
build-pureos-gcc-byzantium

00:01:49

 
  Test
passed #369185
librem5
check-po

00:00:48

passed #369184
librem5
test:debian-gcc

00:01:36

21.6%
 
  Package
passed #369186
librem5
package-pureos-byzantium

00:01:38

passed #369187
librem5:arm64
package-pureos-byzantium:arm64

00:04:59

 
  Test Package
passed #369188
librem5
autopkgtest-pureos-byzantium-package

00:01:20

passed #369189
librem5
lintian-pureos-byzantium-package

00:00:36