New lint: Use shorthand constructors

[TimJentzsch]

What problem does this solve or what need does it fill?

Enforce consistency across the code-base, make the code easier to read.

What solution would you like?

Enforce the usage of some shorthand functions that Bevy provides.

Examples:

• Val::Px(3.0) -> px(3)
• Val::Percent(100.0) -> percent(100)
• ..Default::default() -> ..default()

What alternative(s) have you considered?

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Additional context

This is also inconsistent in the Bevy repository, see bevyengine/bevy#22753