bump: version 1.2.0 → 1.2.1

bump: version 1.1.3 → 1.2.0

Add missing celeryconfig in Dockerfile

- Fixed bug on installation without playlist

Merge pull request #3 from alphatoasterous/main

- Update Dockerfile

- Add Docker installation option

- Refactor bash scripts
- Move Telethon session files to "tgm_sessions" directory
- Add the ability to set port in local tunnel script
- Refactor get_vk_token method

- fix sending caption if VK text is too big

- Fix adding entry to "vtt_task" table and storing "SENT" task state …

…in database

- Fix VTT schema in README