gnome-user-accounts-panel.desktop has some differences in "Categories" in
comparison to other desktop files provided by gnome-control-center for no
obvious reason.
Add "GNOME" and "GTK" categories, which are used in all other desktop files.
Remove "System" and use just "Settings" main category. This among others
prevents the following output from desktop-file-validate:
/usr/share/applications/gnome-user-accounts-panel.desktop: hint: value
"System;Settings;X-GNOME-Settings-Panel;X-GNOME-DetailsSettings;" for key
"Categories" in group "Desktop Entry" contains more than one main
category; application might appear more than once in the application menu
All other desktop files uses just the "Settings" main category.
But maybe this is totally useless patch, because it seems that GNOME Shell
do not care about the most of categories and GNOME Classic do not show those
desktop files in menus at all.
Recent versions of Gettext are able to translate several formats
that are used in GNOME applications. This patch migrates from
Intltool to Gettext by using meson's i18n features.
https://bugzilla.gnome.org/show_bug.cgi?id=787588
Since we don't maintain two different shells anymore, there
is no need to maintain the two different sets of categories
in the desktop files.
This commit also drops the "#ifdef CC_ENABLE_ALT_CATEGORIES"
blocks, since the previous commit removed that define.
https://bugzilla.gnome.org/show_bug.cgi?id=790923
Following the previous patch, this patch adds the new alternative
categories to the panels' Desktop files. These alternative categories
are only relevant for the alternative Shell, and do not break the
current Shell in any way.
https://bugzilla.gnome.org/show_bug.cgi?id=767301
Very few of the panel comments provide information that is very
useful. Update them to supplement the panel descriptions - this
will make the search results more helpful.
https://bugzilla.gnome.org/show_bug.cgi?id=694110
