split query resolvers into separate files

src/index.ts

@@ -1,7 +1,7 @@
 import { readFileSync } from "fs";
 import { ApolloServer } from "@apollo/server";
 import { startStandaloneServer } from "@apollo/server/standalone";
-import { resolvers } from "./resolvers";
+import { MergedResolvers } from "./resolvers";
 import { ServerContext } from "./ServerContext";
 import { UnoptimizedInMemoryRepository } from "./repositories/UnoptimizedInMemoryRepository";
 import { TimedApiBasedRepositoryLoader } from "./loaders/TimedApiBasedRepositoryLoader";
@@ -11,7 +11,7 @@ const typeDefs = readFileSync("./schema.graphqls", "utf8");
 async function main() {
   const server = new ApolloServer<ServerContext>({
     typeDefs,
-    resolvers,
+    resolvers: MergedResolvers,
     introspection: process.env.NODE_ENV !== "production",
   });