Do not require a group in contributed command

Author: joyceerhl

src/vs/workbench/contrib/editSessions/browser/editSessions.contribution.ts

@@ -113,7 +113,7 @@ export class EditSessionsContribution extends Disposable implements IWorkbenchCo
 				}
 				const commands = new Map((extension.description.contributes?.commands ?? []).map(c => [c.command, c]));
 				for (const contribution of extension.value) {
-					if (!contribution.command || !contribution.group || !contribution.when) {
+					if (!contribution.command || !contribution.when) {
 						continue;
 					}
 					const fullCommand = commands.get(contribution.command);