feat: improve map export layout and update vector panel state management

[friedisplay]

Summary
This PR improves the map export handler to ensure all selected vector species are correctly displayed in the exported map image. It also improves the legend layout so it scales cleanly with larger numbers of species without overlapping or being clipped.It also implements a redux function on the vector panel.

Changes
-Transformed the Vector Panel from a static to a dynamic list
-Implemented translations on the Panel

• Improved handling of fallback categories such as other anopheles and other species.
• Made the export legend layout dynamic by adjusting font size and spacing based on the number of active species.
• Updated legend positioning to avoid overlap with the Vector Atlas logo.
• Kept all changes limited to the export canvas without affecting the live map UI.

Testing

• Verified that exports correctly display 31 selected species including 'other anopheles'
• Confirmed fallback categories render correctly.
• Confirmed the legend remains within the export image bounds across different viewport sizes.