Eeschema: dlg size fixes and osx fixes

eeschema/dialogs/dialog_plot_schematic.cpp

@@ -75,9 +75,11 @@ DIALOG_PLOT_SCHEMATIC::DIALOG_PLOT_SCHEMATIC( SCH_EDIT_FRAME* parent ) :
 
     initDlg();
 
-    GetSizer()->SetSizeHints( this );
 
-    Centre();
+    FixOSXCancelButtonIssue();
+
+    // Now all widgets have the size fixed, call FinishDialogSettings
+    FinishDialogSettings();
 }