Add dotenv support

cloudflare_ddns/__main__.py

@@ -1,13 +1,14 @@
 import logging
 from os import environ
 from typing import Tuple
+from dotenv import load_dotenv
 
 import click
 from cloudflare_ddns.app import ApplicationJob
 from cloudflare_ddns.constants import BASE_ENV_VAR, DEFAULT_DELAY, DOMAINS_ENV_VAR
 
 log = logging.getLogger("ddns")
-
+load_dotenv()  
 
 @click.command()
 @click.option(