Otherwise, we end up propagating those dependencies into targets that
link against that library, which creates unnecessary link-time
dependencies.
Also included are changes to readd now missing dependencies to tools
that actually need them.
We previously put the generated headers in SOURCES, which did not mark
them as GENERATED (and did not produce a proper dependency).
This commit moves all generated headers into GENERATED_SOURCES, and
removes useless header SOURCES.
Previously we would unveil the home directory of anon to allow showing
anything in the file picker. This patch removes direct access to the
home directory and instead makes WidgetGallery connect to
FileSystemAccessServer to open a file, making the application more user
agnostic and allowing directories outside /home/anon to be shown.
The sample Wizard subclasses WizardDialog and demonstrates a front and
back cover, as well as extracting user input from a Wizard page to
display in the interface which spawned the Wizard.
