refactor: update import statements to use .js extensions

- Changed all import statements across the project to include the .js extension for consistency and to comply with ES module standards.
- Updated imports in various files including bootstrap.ts, shutdown.ts, config.ts, and many others.
- Ensured that all related modules and types are correctly imported with the new extension.

src/index.ts

@@ -2,8 +2,8 @@ import "./mock-crc";
 import "libsodium-wrappers";
 import "@snazzah/davey";
 import "dotenv/config";
-import { initializeApp } from "./app/bootstrap";
-import { createChildLogger } from "./logger";
+import { initializeApp } from "./app/bootstrap.js";
+import { createChildLogger } from "./logger.js";
 
 const logger = createChildLogger("bot");