Show command descriptions as tooltips in Command Palette (#284609)

Author: Riya-chandra

src/vs/platform/quickinput/browser/commandsQuickAccess.ts

@@ -274,6 +274,8 @@ export abstract class AbstractCommandsQuickAccessProvider extends PickerQuickAcc
 		if (commandPick.type === 'separator') {
 			return commandPick;
 		}
+		const tooltip = commandPick.tooltip
+			?? commandPick.commandDescription?.value;
 
 		const keybinding = this.keybindingService.lookupKeybinding(commandPick.commandId);
 		const ariaLabel = keybinding ?
@@ -292,6 +294,7 @@ export abstract class AbstractCommandsQuickAccessProvider extends PickerQuickAcc
 
 		return {
 			...commandPick,
+			tooltip,
 			ariaLabel,
 			detail: this.options.showAlias && commandPick.commandAlias !== commandPick.label ? commandPick.commandAlias : undefined,
 			keybinding,