enable experimentation for inlineChat.mode (microsoft#202750)

Author: jrieken

src/vs/workbench/contrib/inlineChat/common/inlineChat.ts

@@ -217,7 +217,8 @@ Registry.as<IConfigurationRegistry>(Extensions.Configuration).registerConfigurat
 				localize('mode.livePreview', "Changes are applied directly to the document and are highlighted visually via inline or side-by-side diffs. Ending a session will keep the changes."),
 				localize('mode.preview', "Changes are previewed only and need to be accepted via the apply button. Ending a session will discard the changes."),
 				localize('mode.live', "Changes are applied directly to the document, can be highlighted via inline diffs, and accepted/discarded by hunks. Ending a session will keep the changes."),
-			]
+			],
+			tags: ['experimental']
 		},
 		[InlineChatConfigKeys.FinishOnType]: {
 			description: localize('finishOnType', "Whether to finish an inline chat session when typing outside of changed regions."),