Upgraded framework

[bostrot]

• Switch from telegraf framework to grammy
• Better error handling/reply improvements
• Make ID command easier to understand
• Improve character escaping
• Auto reply msgs to config.yaml
• Smaller container size
• Parse Mode markdown
• Replying to non-tickets or non-bot messages handling

Steps for future separation from telegram:

• Telegram as addon

This adds following confi.yaml options:

parse_mode: "MarkdownV2" # Markdown, HTML or MarkdownV2

show_auto_replied: false # Send auto replied msgs to staff chat

autoreply:
  - question: "install"
    answer: "If you want to install the bot, you can use the following link:\n\
      [Getting Started](https://github.com/bostrot/telegram-support-bot/wiki/Getting-started)\n\n\
      Alternatively you can also use our one-click setup & hosting service:\n\
      [Botspace](https://botspace.bostrot.com/)"
  - question: "are you sure?"
    answer: "Yes."