This pull request introduces a new "Orange" theme to the application, providing users with an additional aesthetic option. The new theme features a vibrant orange color scheme, offering a fresh and visually appealing alternative to the existing themes.

The addition of the Orange theme aims to enhance the user experience by providing more customization options. This is especially beneficial for users who prefer warmer color tones or seek variety in the visual presentation of the application.

Changes:
Added theme-orange.scss for the Orange theme styles.
Updated theme.ts to include the Orange theme in the theme management system.
Modified UI elements to ensure compatibility and visual consistency with the new theme.
Conducted testing to verify the integration and appearance of the Orange theme across different pages and components.

Screenshots:
Capture
Capture1

Testing:
Verified the Orange theme displays correctly in various components and pages.
Ensured the theme can be toggled seamlessly alongside other themes.
Conducted usability testing to confirm that text and elements remain readable and aesthetically pleasing.
Notes:
Any feedback or suggestions for further improvements are welcome. Thank you for considering this addition!