dateMenu: Do not ellipsize clock

This addresses the issue with ellipsized clock that occurs when using
extensions that move the clock from the middle to the side of the top
bar.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1327

Signed-off-by: MOZGIII <mike-n@narod.ru>

js/ui/dateMenu.js

@@ -784,6 +784,7 @@ class DateMenuButton extends PanelMenu.Button {
 
         this._clockDisplay = new St.Label({ style_class: 'clock' });
         this._clockDisplay.clutter_text.y_align = Clutter.ActorAlign.CENTER;
+        this._clockDisplay.clutter_text.ellipsize = Pango.EllipsizeMode.NONE;
 
         this._indicator = new MessagesIndicator();