Revert "Move everything to one file"

This reverts commit 628ffc9587.

discord_embed/webhook.py

@@ -0,0 +1,18 @@
+"""Send webhook to Discord."""
+from discord_webhook import DiscordWebhook
+
+from discord_embed import settings
+
+
+def send_webhook(message: str) -> None:
+    """Send webhook to Discord.
+
+    Args:
+        message: The message to send.
+    """
+    webhook = DiscordWebhook(
+        url=settings.webhook_url,
+        content=message,
+        rate_limit_retry=True,
+    )
+    webhook.execute()