bulk select prompts for enable/disable #256

PR
PR description

Summary

  • Add a selection column and a bulk-action toolbar to the shared prompts editor (used by both the settings page and the onboarding wizard) so users can enable or disable multiple prompts in one click.
CUT
cutter bot commented just now

🎬 Cutter preview — PR #256

Select individual prompt
Select individual prompt — Selecting a prompt reveals a bulk toolbar to enable, disable, or clear the selection.		Clear prompt selection
Clear prompt selection — Prompt checkboxes are all cleared and the bulk action toolbar is gone.