Don't prevent launching the editor when `updateStyleSheet` fails

src/vs/workbench/contrib/webview/browser/webviewEditorInput.ts

@@ -42,6 +42,8 @@ class WebviewIconsManager {
 
 	private async updateStyleSheet(lifecycleService: ILifecycleService, ) {
 		await lifecycleService.when(LifecyclePhase.Starting);
+
+		try {
 			const cssRules: string[] = [];
 			this._icons.forEach((value, key) => {
 				const webviewSelector = `.show-file-icons .webview-${key}-name-file-icon::before`;
@@ -53,6 +55,9 @@ class WebviewIconsManager {
 				}
 			});
 			this._styleElement.innerHTML = cssRules.join('\n');
+		} catch {
+			// noop
+		}
 	}
 }