In LSUI mode the menu bar doesn't hide so don't make fullscreen windows go all...

In LSUI mode the menu bar doesn't hide so don't make fullscreen windows go all the way to the top of the screen.

sources/PseudoTerminal.m

@@ -3402,7 +3402,7 @@ ITERM_WEAKLY_REFERENCEABLE
     frameMinusMenuBar.size.height -= [[[NSApplication sharedApplication] mainMenu] menuBarHeight];
     BOOL menuBarIsVisible = NO;
-    if (![iTermPreferences boolForKey:kPreferenceKeyHideMenuBarInFullscreen]) {
+    if (![iTermPreferences boolForKey:kPreferenceKeyHideMenuBarInFullscreen] || [iTermPreferences boolForKey:kPreferenceKeyUIElement]) {
         // Menu bar can show in fullscreen...
         // There is a menu bar on all screens.
         menuBarIsVisible = YES;