Qt: show main window normally instead of maximized

Sidenote: The main window size calculations are getting stupid.
It would be better to find out the widget sizes and shift
the splitter up, instead of letting it just take up half of the main window.

Idea and part of the code by Richard Henschel

doc/fixes3-7-0.txt

@@ -2118,6 +2118,7 @@ Qt: with a pick-one menu containing a pre-selected entry, clicking on that
 	instead of typing the selector letter toggled off preselected entry
 	but failed to toggle on the explicitly selected one; clicking again
 	after nothing was pre-selected anymore refused to toggle anything on
+Qt: don't show main window and tombstone window maximized by default
 tty: redraw unexplored locations as S_unexplored rather than <space> after
 	map has been partially overwritten by popup menu or text display
 tty: previous change resulted in remnants of previous level being shown on

win/Qt/qt_main.cpp

@@ -886,8 +886,8 @@ NetHackQtMainWindow::NetHackQtMainWindow(NetHackQtKeyBuffer& ks) :
     if (qt_settings != NULL) {
         auto glyphs = &qt_settings->glyphs();
         if (glyphs != NULL) {
-            maxwn = glyphs->width() * COLNO + 10;
-            maxhn = glyphs->height() * ROWNO * 6/4;
+            maxwn = glyphs->width() * (COLNO + 1);
+            maxhn = glyphs->height() * ROWNO * 6/4 + glyphs->height() * 10;
         }
     }
 
@@ -1456,7 +1456,7 @@ void NetHackQtMainWindow::ShowIfReady()
 	} else {
 	    layout();
 	}
-	showMaximized();
+	showNormal();
     } else if (isVisible()) {
 	hide();
     }

win/Qt/qt_menu.cpp

@@ -1115,8 +1115,7 @@ void NetHackQtTextWindow::Display(bool block UNUSED)
 #endif
     int mh = screensize.height()*3/5;
     if ( (qt_compact_mode && lines->TotalHeight() > mh) || use_rip ) {
-	// big, so make it fill
-	showMaximized();
+        showNormal();
     } else {
 	move(0, 0);
 	adjustSize();