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/storage/server/api/files.test.ts

@@ -5,7 +5,6 @@ import FormData from "form-data";
 import { ensureDirSync } from "fs-extra";
 import { v4 as uuidV4 } from "uuid";
 import env from "@server/env";
-import "@server/test/env";
 import FileStorage from "@server/storage/files";
 import { buildAttachment, buildUser } from "@server/test/factories";
 import { getTestServer } from "@server/test/support";