Reset device zoom to 100 in ResetMonitorSpecificScalingExtension

Disposing the display alone is insufficient, as some tests do not create
a new display and continue to use the previously set device zoom when
calling DPIUtil.getDeviceZoom. This change ensures that device zoom is
explicitly reset to 100 after each test, preventing unintended side
effects from lingering zoom values across tests.

Author: ShahzaibIbrahim

bundles/org.eclipse.swt/Eclipse SWT Tests/win32/org/eclipse/swt/internal/ResetMonitorSpecificScalingExtension.java

@@ -33,6 +33,7 @@ public void beforeEach(ExtensionContext context) throws Exception {
 	public void afterEach(ExtensionContext context) throws Exception {
 		Win32DPIUtils.setMonitorSpecificScaling(wasMonitorSpecificScalingActive);
 		Display.getDefault().dispose();
+		DPIUtil.setDeviceZoom(100);
 	}
 
 }