chore: add v0.5.4 changelog entries (#367)

Added changelog entries for version 0.5.4 covering:
- Fixed concurrent chat sessions event cross-talk with WebSocket event routing refactoring
- Fixed cron job edit payloads with partial PATCH to support long prompt name-only edits
- Fixed web terminal Hermes CLI availability after Docker deployment
- Added workspace dialog i18n translations for title and improved session persistence
- Supported code block copy feedback with user notifications
- Aligned usage analytics with Hermes state DB schema

Updated all language files (en, zh, de, es, fr, ja, ko, pt) and changelog data file.

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "hermes-web-ui",
-  "version": "0.5.3",
+  "version": "0.5.4",
   "description": "Self-hosted AI chat dashboard for Hermes Agent — multi-model (Claude, GPT, Gemini, DeepSeek) web UI with Telegram, Discord, Slack, WhatsApp integration",
   "repository": {
     "type": "git",