renderer: support reactivating renderer without closing it first

At the moment, ply_renderer_activate() doesn't work immediately following
ply_renderer_deactivate().  This is because the renderer isn't marked
inactive until it's closed.

This commit marks the renderer inactive when it's deactivated.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>

https://bugs.freedesktop.org/show_bug.cgi?id=107047