Remove stray float literal .0 suffixes in lieu of just ending with a point

[Keavon]

No description provided.

[gemini-code-assist]

Code Review

This pull request performs a widespread cleanup of floating-point literals across the codebase, simplifying values like 0.0 and 1.0 to 0. and 1. respectively. It also updates a comment in fullscreen_vertex.rs to refer to 'WebGPU' instead of 'webgpu' and simplifies the coordinate range representation. There are no review comments, so I have no feedback to provide.

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[cubic-dev-ai]

No issues found across 23 files

Confidence score: 5/5

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_{Re-trigger cubic}