Separate environment configs (#6597)

* Separate environment configs

* wip

* wip

* test

* plugins

* test

* test

* .sequelizerc, unfortunately can't go through /utils/environment due to not supporting TS

* docker-compose -> docker compose

* fix: .local wipes .development

* Add custom validation message for invalid SECRET_KEY (often confused)

plugins/iframely/server/iframely.ts

@@ -1,9 +1,9 @@
 import { Day } from "@shared/utils/time";
-import env from "@server/env";
 import { InternalError } from "@server/errors";
 import Logger from "@server/logging/Logger";
 import Redis from "@server/storage/redis";
 import fetch from "@server/utils/fetch";
+import env from "./env";
 
 class Iframely {
   private static apiUrl = `${env.IFRAMELY_URL}/api`;