* feat: add support for dark icon
- Introduced IconDark field in PluginDeclaration and related structures to support dark mode icons.
- Updated the installation process to handle dark icons.
- Enhanced asset validation to check for the presence of dark icons.
This change improves the visual consistency of plugins in dark mode environments.
* enhance(cli/icon): add plugin icon support with multiple categories
- Added support for light and dark icons for various plugin categories including agent, datasource, extension, model, tool, and trigger.
- Replaced the previous single icon implementation with a structured map for better organization and retrieval of icons based on category and theme.
- Removed the old Python icon file to streamline asset management.
This update improves the visual representation of plugins across different themes, enhancing user experience.
* change icons
* fix
* fix
* comments
Yeuoly