fix: decouple IDB writes from network-data return path

QuotaExceededError from a full IndexedDB was being caught by the IIFE's
try/catch (after the earlier await-upsert change), causing repos to return
null/empty even when the network fetch succeeded. Fire-and-forget upserts
with .catch(()=>{}) ensure write failures never suppress fetched data.

client/src/repo/accommodationRepo.ts

@@ -11,7 +11,7 @@ export const accommodationRepo = {
     const refresh = (async () => {
       try {
         const result = await accommodationsApi.list(tripId)
-        await upsertAccommodations(result.accommodations || [])
+        upsertAccommodations(result.accommodations || []).catch(() => {})
         return result
       } catch {
         return null