Add or remove "." at the end of strings in </summary> and </description>
Maybe check string end consistency in https://gitlab.gnome.org/GNOME/shotwell/-/blob/master/data/gsettings/org.yorba.shotwell.gschema.xml
Strings before </summary>
and </description>
sometimes have "." at the end and sometimes not.
3 </summary>
have "." the rest does not. So i guess we can remove those 3 "." to have all consistent.
Maybe </description>
could be made consistent in each <schema>
group. So either they have "." or not within the same group.
Or make them all consistent if it's good.
I don't know if there are some kind of standard for such strings.