Use Workspace directory for usedata directory

With this contribution, Edge browser uses the workspace directory for
the userdata directory for the separation of the usage of userdata
directory per workspace by the webview2Environment.

contributes to #1013

bundles/org.eclipse.swt/Eclipse SWT Browser/win32/org/eclipse/swt/browser/Edge.java

@@ -55,6 +55,7 @@ class Edge extends WebBrowser {
 	 */
 	private static final URI URI_FOR_CUSTOM_TEXT_PAGE = setupAndGetLocationForCustomTextPage();
 	private static final String ABOUT_BLANK = "about:blank";
+	private static final String DISPLAY_USER_DATA_FOLDER = "displayUserDataFolder";
 
 	private record WebViewEnvironment(ICoreWebView2Environment environment, ArrayList<Edge> instances) {
 		public WebViewEnvironment(ICoreWebView2Environment environment) {
@@ -476,6 +477,9 @@ WebViewEnvironment createEnvironment() {
 	String dataDir = System.getProperty(DATA_DIR_PROP);
 	String browserArgs = System.getProperty(BROWSER_ARGS_PROP);
 	String language = System.getProperty(LANGUAGE_PROP);
+	if (dataDir == null) {
+		dataDir = (String) browser.getDisplay().getData(DISPLAY_USER_DATA_FOLDER);
+	}
 	if (dataDir == null) {
 		// WebView2 will append "\\EBWebView"
 		dataDir = (String)display.getData(APPLOCAL_DIR_KEY);