gh-78143: IDLE - fix settings dialog page label. (GH-96009)

'/Tab' should have been removed from the font page label
when the tab-spaces setting was moved to the Windows page.
(cherry picked from commit f6b811059ac945a283bb59bf37efac162c3bbab6)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

Author: miss-islington

idlelib/configdialog.py

@@ -121,7 +121,7 @@ def create_widgets(self):
         self.winpage = WinPage(note)
         self.shedpage = ShedPage(note)
 
-        note.add(self.fontpage, text='Fonts/Tabs')
+        note.add(self.fontpage, text=' Fonts ')
         note.add(self.highpage, text='Highlights')
         note.add(self.keyspage, text=' Keys ')
         note.add(self.winpage, text=' Windows ')