Change cancel button text to Close

- Issue MatterHackers/MCCentral#4390
Settings cancel button should be close or ok

MatterControlLib/SettingsManagement/ApplicationSettingsPage.cs

@@ -55,6 +55,8 @@ namespace MatterHackers.MatterControl
 			this.WindowTitle = this.HeaderText = "MatterControl " + "Settings".Localize();
 			this.WindowSize = new Vector2(700 * GuiWidget.DeviceScale, 600 * GuiWidget.DeviceScale);
 
+			this.SetCancelButtonText("Close".Localize());
+
 			contentRow.Padding = theme.DefaultContainerPadding;
 			contentRow.Padding = contentRow.Padding.Clone(top: 0);