test(web): align skill snapshot with turn actions

apps/web/tests/snapshots/skill-tool-row/ui.expected.md

@@ -7,9 +7,6 @@
 - text: Load the snapshot-skill skill with the skill tool, then reply DONE. {{date}} {{clock}}
 - button "Copy":
   - img
-- button "Branch into a new conversation" [disabled]:
-  - img
-- text: Available only on the last message of a completed turn
 - button "Context injection @deepseek-ai/dsh-system-prompt":
   - img
   - img