feat: Enhance Marketplace and Skill Management UI with improved error handling and user feedback

- Updated MarketplaceDrawer to include security notes and manual installation hints.
- Refactored SkillDetailDrawer to display default icons for skills.
- Simplified SkillListItem to use default icons for better readability.
- Integrated gateway status checks and warnings in SkillsPage for improved user awareness.
- Enhanced error handling for skill installation and fetching, providing clearer feedback to users.
- Added new translations for error messages and gateway warnings to improve localization support.

electron-builder.yml

@@ -14,10 +14,16 @@ files:
   - package.json
 
 extraResources:
+  - from: resources/skills/
+    to: resources/skills/
+    filter:
+      - "**/*"
   - from: resources/icons/
     to: icons/
     filter:
       - "**/*"
+  - from: build/preinstalled-skills/
+    to: resources/preinstalled-skills/
   - from: electron/scripts/
     to: scripts/
     filter:
@@ -118,4 +124,4 @@ linux:
       Comment: 智念AI - 智能桌面应用
       Categories: Utility;Network;
       Keywords: ai;assistant;automation;chat;
-      StartupWMClass: zn-ai
+      StartupWMClass: zn-ai