style: standardize import ordering, type imports, and formatting in source files

Sort imports alphabetically, convert value imports to type-only where
appropriate, normalize indentation to tabs, and sort exports
alphabetically across UI components, pages, and lib modules.

src/components/events-list.tsx

@@ -1,6 +1,6 @@
 import { Calendar1Icon } from "lucide-react";
-import { EventCard } from "./event-card";
 import type { CalendarEvent } from "@/lib/types";
+import { EventCard } from "./event-card";
 
 interface EventsListProps {
 	events: CalendarEvent[];