Deleted mysql support, redis password, webhook, keyboard constructors, filters, loguru.

Added support of decorators in handlers
Added function to notify admins on startup

handlers/users/echo.py

@@ -0,0 +1,7 @@
+from aiogram import types
+from bot import dp
+
+
+@dp.message_handler()
+async def bot_start(message: types.Message):
+    await message.answer(message.text)