commit 6b46d9a0ed that added DConf path
skewering to camelcase conversion only allowed it in one direction
(skewered path1 and camelcase path2).
That turned out to be not enough to allow /org/gnome/sound-juicer/ to
/org/gnome/SoundJuicer/ conversion as the caller had the
flatpak_dconf_path_is_similar() arguments the other way around.
This commit implements it both ways to avoid confusion which way it
should be called.
F: Ignoring D-Conf migrate-path setting /org/gnome/sound-juicer/