v2.1.0

Update for MYSQL table prefixes. Now table prefix is same as session name and not account id. No session files required for start anymore.

How to upgrade:

1. Stop containers and remove session files:

   docker compose down
   docker compose up -d mysql
   rm -rf vendor/
   rm -rf sessions/session.madeline/*

2. Rename tables in MadelineProto MYSQL database from XXXXX_MTProto_session to session_MTProto_session:
   
   If you have multiple containers/sessions you need to rename tables according to session names.
3. docker compose up -d