--no-truncate flag in show command

[ch1nq]

Fixes #9597

In order to get a more consistent output from the poetry show command, this PR introduces a --no-truncate flag to the command. When the flag is set the show command does not take the width of the terminal into account when deciding the level of detail to print.

Pull Request Check List

• Added tests for changed code.
• Updated documentation for changed code.

[abn]

Why not just set width = math.inf if self.option("--no-truncate") else ...? simplifies the code changes a lot.

[abn]

Also, you might need to re-do the cli doc changes, since we reodered that doc.

[abn]

@ch1nq is this something you'd like to continue working on?

[ch1nq]

@ch1nq is this something you'd like to continue working on?

Thanks for the review - I will apply the suggested changes

[ch1nq]

@abn I have gone with sys.maxsize instead of math.inf, since we need it to be an int. This is because we use the value as a slice index later in the code.