Move layout.rs from server to utils

[a-kenji]

• give feedback on most errors in the layout-file

[a-kenji]

@TheLostLambda
Thank you for checking the errors!
Do you think it can lead to problems omitting the

#[serde(skip_serializing_if = "Option::is_none")]

attributes, or is the struct just slightly larger now?

[TheLostLambda]

@TheLostLambda
Thank you for checking the errors!
Do you think it can lead to problems omitting the

#[serde(skip_serializing_if = "Option::is_none")]

attributes, or is the struct just slightly larger now?

I think that should be fine. I think this is actually the only place the struct is serialised at the moment? If I recall correctly it may have once been intended to produce cleaner outputs when saving a layout from Zellij, but having an empty YAML field really isn't too bad, I don't think :)

[a-kenji]

Thank you!
Yes it is the only location that serializes the struct currently.