feat(src/djinit/templates/config/settings): resolve env_path for settings base

Resolve env_path to correctly load .env file from project root.

src/djinit/templates/config/settings/base.py-tpl

@@ -9,8 +9,9 @@ from pathlib import Path
 
 import environ
 
+env_path = Path(__file__).resolve().parent.parent / ".env"
 env = environ.Env()
-environ.Env.read_env()
+environ.Env.read_env(env_path)
 
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent.parent