Output formats

[flatcap]

Here are some suggested formats for neo-bot.
They use two lines to make the info easier to find.

Issue

🐞 Issue #3200 by @wgmayer0 "Save all attachments with a keybinding" (4💬)
   https://github.com/neomutt/neomutt/issues/3200

Contents:

• Icon 🐞
• Leader: Issue
• Issue number
• Login name of author
• Quoted title of Issue
• Number of comments + icon 💬
• Link to Issue on new line (indented to align text)

Pull Request

✅ PR #3199 by @gahr "Use FreeBSD 13 in Cirrus" (6📄/+400/-128) (4💬)
   https://github.com/neomutt/neomutt/pull/3199

Contents:

• Icon ✅
• Leader: PR
• Pull request number
• Login name of author
• Quoted title of Pull Request
• Diff stats
  • Number of files changed + icon 📄
  • + + number of lines added
  • - + number of lines removed
• Number of comments + icon 💬
• Link to Pull Request on new line (indented to align text)

Discussion

💀 Discussion #3203 by @flatcap "Compose: Renaming Op Codes" (4💬)
   https://github.com/neomutt/neomutt/discussions/3203

Contents:

• Icon taken from the Discussion's category
• Leader: Discussion
• Discussion number
• Login name of author
• Quoted title of Discussion
• Number of comments + icon 💬
• Link to Discussion on new line (indented to align text)

[flatcap]

I think we should hide the comments section if there aren't any comments.