chore: add index on queuedAt and sentAt (#589)

Author: arcoraven

src/prisma/migrations/20240731184631_add_queued_at_idx/migration.sql

@@ -0,0 +1,5 @@
+-- CreateIndex
+CREATE INDEX "transactions_queuedAt_idx" ON "transactions"("queuedAt");
+
+-- CreateIndex
+CREATE INDEX "transactions_sentAt_idx" ON "transactions"("sentAt");

src/prisma/schema.prisma

@@ -160,6 +160,8 @@ model Transactions {
   sentAtBlockNumber         Int?      @map("sentAtBlockNumber")
   blockNumber               Int?      @map("blockNumber")
 
+  @@index([queuedAt])
+  @@index([sentAt])
   @@map("transactions")
 }