Switch to TypeORM's DataSource API (#299)

- Switch to TypeORM's DataSource API, rather than using the now deprecated ormconfig.json
- This will fix stage deployment not knowing how to deploy the database migrations

#297

> **NOTE:** This change requires the deployment scripts to be updated, please update them on the server before merging

Co-authored-by: Ethan Lane <ethan@vylpes.com>
Reviewed-on: https://gitea.vylpes.xyz/RabbitLabs/vylbot-app/pulls/299

src/database/dataSources/appDataSource.ts

@@ -0,0 +1,26 @@
+import { DataSource } from "typeorm";
+import * as dotenv from "dotenv";
+
+dotenv.config();
+
+const AppDataSource = new DataSource({
+    type: "mysql",
+    host: process.env.DB_HOST,
+    port: Number(process.env.DB_PORT),
+    username: process.env.DB_AUTH_USER,
+    password: process.env.DB_AUTH_PASS,
+    database: process.env.DB_NAME,
+    synchronize: process.env.DB_SYNC == "true",
+    logging: process.env.DB_LOGGING == "true",
+    entities: [
+        "dist/database/entities/**/*.js",
+    ],
+    migrations: [
+        "dist/database/migrations/**/*.js",
+    ],
+    subscribers: [
+        "dist/database/subscribers/**/*.js",
+    ],
+});
+
+export default AppDataSource;