Re-starting the shell client wouldn't reset the activation area, which
might be rather confusing, so better be re-initialize it as to be able to
switch in-between various configurations.
Bug-AGL: SPEC-4674 Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Change-Id: Ib964ebed2c189f82092ffcf4d54dee2cf22093e1