Refactor code for consistency and readability

- Standardized string quotes to double quotes across multiple files.
- Improved formatting and indentation for better readability.
- Added a function to format multiline text in tools rendering.
- Enhanced dropdown and action button handlers for better event management.
- Updated the theme application logic to initialize on page load.
- Refactored utility functions for consistency and clarity.
- Improved error handling and user feedback in download and share functionalities.

website/src/scripts/theme.ts

@@ -27,6 +27,9 @@ function applyTheme(theme: 'light' | 'dark'): void {
   document.documentElement.setAttribute('data-theme', theme);
 }
 
+const initialTheme = getThemePreference();
+applyTheme(initialTheme);
+
 /**
  * Toggle between light and dark theme
  */