Refactor admin actions and improve code formatting: Standardize import statements, enhance error handling messages, and apply consistent formatting across event, user, and preference management functions for better readability and maintainability.

components/ui/index.ts

@@ -12,4 +12,3 @@ export { default as BackgroundSection } from "./BackgroundSection";
 export { default as Alert } from "./Alert";
 export { default as CloseButton } from "./CloseButton";
 export { default as ThemeToggle } from "./ThemeToggle";
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