Greatly reduce repeated code

functions/api/game-bans/[user]/history.ts

@@ -1,3 +1,4 @@
+import { jsonError, jsonResponse } from "../../../common.js";
 import { queryLogs } from "../../../gcloud.js";
 
 export async function onRequestGet(context: RequestContext) {
@@ -17,26 +18,15 @@ export async function onRequestGet(context: RequestContext) {
 
   if (!robloxUserReq.ok) {
     console.log(await robloxUserReq.json());
-    return new Response('{"error":"Failed to resolve username"}', {
-      headers: {
-        "content-type": "application/json",
-      },
-      status: 500,
-    });
+    return jsonError("Failed to resolve username", 500);
   }
 
   const { data: users }: { data: { [k: string]: any }[] } =
     await robloxUserReq.json();
 
-  if (!users.length)
-    return new Response('{"error":"No user found with that name"}', {
-      headers: {
-        "content-type": "application/json",
-      },
-      status: 400,
-    });
+  if (!users.length) return jsonError("No user found with that name", 400);
 
-  return new Response(
+  return jsonResponse(
     JSON.stringify(
       (await queryLogs(users[0].id, context)).sort((a, b) =>
         a.entity.properties.executed_at.integerValue >
@@ -45,10 +35,5 @@ export async function onRequestGet(context: RequestContext) {
           : -1,
       ),
     ),
-    {
-      headers: {
-        "content-type": "application/json",
-      },
-    },
   );
 }