feat: use new db site, cache requests to avoid repeated unneeded fetch calls

app/page.tsx

@@ -4,6 +4,7 @@ import { useState, useEffect, useMemo } from 'react';
 import { useInventoryStore } from '@/store/useInventoryStore';
 import styles from '../styles/Home.module.css';
 import { isNamedDLC } from '@/lib/utils';
+import { fetchCharacters, fetchItems, fetchOfferings, fetchCustomizations, fetchDLCs } from '@/lib/db';
 
 export default function Home() {
   const store = useInventoryStore();
@@ -18,11 +19,11 @@ export default function Home() {
 
   useEffect(() => {
     Promise.all([
-      fetch('/data/characters.json').then(r => r.json()).catch(() => []),
-      fetch('/data/items.json').then(r => r.json()).catch(() => []),
-      fetch('/data/offerings.json').then(r => r.json()).catch(() => []),
-      fetch('/data/customization_items.json').then(r => r.json()).catch(() => []),
-      fetch('/data/dlcs.json').then(r => r.json()).catch(() => [])
+      fetchCharacters(),
+      fetchItems(),
+      fetchOfferings(),
+      fetchCustomizations(),
+      fetchDLCs()
     ]).then(([chars, items, offerings, customizations, dlcs]) => {
       setCharCount(chars.length);
       setItemsCount(items.length);