Add ESLint (#941)

* Add eslint, switch to lint-staged for precommit

* Fix all ESLint errors

* Update GH workflow to check prettier and eslint

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gateway/start.ts b/src/gateway/start.ts

index b86c3eca..79448f91 100644
--- a/src/gateway/start.ts
+++ b/src/gateway/start.ts
@@ -24,7 +24,7 @@ import { Server } from "./Server";
 import { config } from "dotenv";
 config();
 
-var port = Number(process.env.PORT);
+let port = Number(process.env.PORT);
 if (isNaN(port)) port = 3002;
 
 const server = new Server({