✨ add completion to gh pr checkout <tab>

[AucaCoyan]

Hi! I added completion to gh pr checkout <tab>
It grabs the first 30 open prs

I tried some things

gh pr checkout can accept

• a pr number
• a url
• or a branch

before I tried

• Incrementing the limit of PRs from 30 (default) to 50, but I takes considerably longer to query, and gotta go fast
• using the extra field in autocomplete Suggestion. But I couldn't make it
• tried to use the title in the value, like this below, but when you select a row, it pastes the title into the cli, so gh pr checkout <title> doesn't make sense
  

So, selecting the pr number is the closest I can get to

[fdncred]

Thanks for adding this. Can't wait to use it.

[AucaCoyan]

You are welcome! ❤️