fix: remove streaming indicator from history message list (#456)

Remove streaming-indicator and tool calls panel from HistoryMessageList component.
History sessions should not show "typing" indicators as they are read-only, completed sessions.

Changes:
- Remove streaming-indicator video animation from history
- Remove tool calls panel from history
- Clean up unused imports and functions
- Remove unnecessary watchers
- Clean up related styles (~200 lines removed)
- Update version to 0.5.11 in package.json
- Update changelog version to 0.5.11

This fixes the issue where history sessions incorrectly showed streaming indicators
when there was an active run in another session.

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

package.json

@@ -1,6 +1,6 @@
 {
   "name": "hermes-web-ui",
-  "version": "0.5.10",
+  "version": "0.5.11",
   "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",