more 'selectsaved'

If the saved game menu has more than 13 games, it won't be able to
use 'n' for "new game" and 'q' for "quit".  Switch to 'N' and 'Q'
instead of just using the next letters in sequence.  Only resort to
next-letters if there are more than 39 games.

tty and curses handle a list of many save files via menu pagination.
X11 does so with one long page possessing a scroll bar.  If there
are more than 52 entries, selection via mouse is needed beyond 'Z'.

Qt has one page without any scroll bar so won't provide access to
the full set of save files when there are too many to fit on the
screen.

win/Qt/qt_svsel.cpp

@@ -23,13 +23,9 @@
 //              ...               as many buttons as needed
 //----
 //
-// TODO?
-//  Character names are sorted alphabetically.  It would be useful to
-//  be able to sort by role or by game start date or by save date.
-//  The core fetches character names from inside the files; it could
-//  obtain the information needed for alternate sorting.  Simpler
-//  enhancement:  instead of just showing the character name, show
-//  "name-role-race-gender-alignment".
+// FIXME:
+//  If there are a lot of saved games available, the selection dialog
+//  needs vertical scrolling capability.
 //
 // Note:
 //  The code in this file is not used if the program is built without