fix: remove unused import and fix translation issues

- Remove unused fs/promises import in extension.ts
- Fix Turkish translation: replace Cyrillic 'д' with Turkish 'd' in süreden
- Fix Catalan translation: use consistent 'extensió' terminology

Author: hannesrudolph

src/extension.ts

@@ -1,7 +1,6 @@
 import * as vscode from "vscode"
 import * as dotenvx from "@dotenvx/dotenvx"
 import * as path from "path"
-import * as fs from "fs/promises"
 
 // Load environment variables from .env file
 try {