An option to exclude cell-output

[JoFrhwld]

I Have checked the following

• I have searched the issue tracker for similar issues
• I have the latest version of Quarto CLI
• I have the latest version of the Quarto extension

Bug description

Having the option to exclude cell-output from executed blocks would be great. Currently, they get the DEFAULT auto file name, and it can be visually confusing what blocks are code input and which are code output.

Steps to reproduce

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Actual behaviour

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Expected behaviour

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Your environment

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