chore: bump version to v1.5.5

Changes since v1.5.4:
- docs: add Get NostrKey section with install links for all platforms
- docs: Chrome Web Store links in README and SUPPORT.md
- docs: promote Chrome Web Store install, remove PR button, fix list styling

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

feat: settings UI overhaul — accordions, toggle switches, dead relay …

…cleanup

- Reorganize full_settings into App Settings / Profile Settings / General sections
- Remove duplicate Security accordion (handled by dedicated security page)
- Convert security.html to accordion layout with hash-based deep linking
- Replace relay read/write checkboxes with Material-style toggle switches
- Clean up vault page styling to match nostr-keys page
- Remove dead relays (brb.io, nostr.orangepill.dev) from recommended list
- Update support page with stale relay troubleshooting and nostrkey.com branding
- Bump to v1.5.4

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

v1.5.3 — Manage Nostr Keys page (export/import)

chore: bump version to v1.5.2 and rebuild distros

Companion app redesign, browser detection, bundle ID fix, Docker
cleanup. Chrome and Safari sideload ZIPs updated.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

chore: bump version to v1.5.1

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

v1.5.0 — Cross-device sync, license page, no-crypto notice, full docs…

… update

v1.2.1: Accessibility compliance, version bump, updated docs

- Bump version to 1.2.1 across all manifests and package.json
- WCAG AA accessibility fixes (contrast, ARIA, focus, reduced motion)
- Update README with v1.2.1 release link and Apple App Store status
- New Chrome and Safari zips for GitHub release

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

feat: Security settings page, UI refactor to vanilla JS, manifest upd…

…ates for v1.2.0

- Add standalone security settings page (master password + auto-lock)
- Persist auto-lock timeout in storage, fix "Never" option triggering immediate lock
- Refactor all sub-pages from Alpine.js to vanilla JS (vault, api-keys, permissions, event history, experimental)
- Wire sidepanel security/auto-lock buttons to new security page
- Bump version to 1.2.0, add author/homepage_url to manifests
- Update store description in locales

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>