[layout] add more layout code with tests · honghaoz/ChouTiUI@dbaf8c0

Process completed with exit code 2.

warning: Explicit Init Violation: Prefer named constructors over .init and type inference (explicit_init)

warning: Explicit Init Violation: Prefer named constructors over .init and type inference (explicit_init)

warning: Explicit Init Violation: Prefer named constructors over .init and type inference (explicit_init)

warning: Explicit Init Violation: Prefer named constructors over .init and type inference (explicit_init)

Done linting! Found 4 violations, 0 serious in 170 files.

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