general: Remove periods from single sentences

This is done to align with the HIG rule about periods in single sentence
strings.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/3280>

js/ui/inhibitShortcutsDialog.js

@@ -78,7 +78,7 @@ export const InhibitShortcutsDialog = GObject.registerClass({
         if (restoreAccel) {
             let restoreLabel = new St.Label({
                 /* Translators: %s is a keyboard shortcut like "Super+x" */
-                text: _('You can restore shortcuts by pressing %s.').format(restoreAccel),
+                text: _('You can restore shortcuts by pressing %s').format(restoreAccel),
                 style_class: 'message-dialog-description',
             });
             restoreLabel.clutter_text.ellipsize = Pango.EllipsizeMode.NONE;