test(web): re-record the goldens for the preset the header now names

Every changed golden gains only the preset label and the settings row's copy —
78 insertions, no deletions — which is this layer's surface appearing where it
was always going to appear.

apps/web/tests/snapshots/subagent-conversation/ui.expected.md

@@ -42,6 +42,7 @@
 - button "Commands":
   - img
 - 'button "Access mode, current: Workspace Write"': Workspace Write
+- text: standard
 - button "6% of context used"
 - button "Send message" [disabled]
 - text: 2 turns · 2 steps LLM {{duration}} TTFT avg {{duration}} · {{throughput}} tok/s Cache hit 99% Input 15.6K tok · Output 158 tok