feat: Add event collection and event page structure

- Introduced a new events collection in config.ts with schema validation.
- Created a new event markdown file for the WarGear event.
- Updated German translations to include new event-related strings.
- Modified PageLayout to support a wide layout option.
- Enhanced announcements page to improve tag filtering and post rendering.
- Implemented dynamic event pages with detailed event information and fight plans.
- Added an index page for events to list all upcoming events.

src/components/moderator/pages/event/FightEditRow.svelte

@@ -38,6 +38,11 @@
 
         duplicateOpen = false;
     }
+
+    async function handleDelete() {
+        await $fightRepo.deleteFight(data.event.id, fight.id);
+        refresh();
+    }
 </script>
 
 <div>
@@ -55,6 +60,7 @@
             <FightEdit {fight} {data} onSave={handleSave}>
                 {#snippet actions(dirty, submit)}
                     <DialogFooter>
+                        <Button variant="destructive" onclick={handleDelete}>Löschen</Button>
                         <Button disabled={!dirty} onclick={submit}>Speichern</Button>
                     </DialogFooter>
                 {/snippet}