Fix typo

Change-Id: I085d0346d6f7aebc6e685bc1c2407535eb227dfc
Reviewed-on: https://gerrit.libreoffice.org/45835Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>

sd/source/ui/framework/factories/FullScreenPane.cxx

@@ -58,7 +58,7 @@ FullScreenPane::FullScreenPane (
     if (mpWorkWindow.get() == nullptr)
         return;
 
-    // Create a new top-leve window that is displayed full screen.
+    // Create a new top-level window that is displayed full screen.
     mpWorkWindow->ShowFullScreenMode(true, nScreenNumber);
     // For debugging (non-fullscreen) use mpWorkWindow->SetScreenNumber(nScreenNumber);
     mpWorkWindow->SetMenuBarMode(MenuBarMode::Hide);