Fix "failed to get surface texture: Timeout" issue with viewer (Plus update dependencies) #16
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Currently, when you clone mainline rive-rs and attempt to run the viewer with a file that has no animations, the viewer panics with the following error:

File: https://chasem.nyc3.cdn.digitaloceanspaces.com/GitHub/Static%20File.riv
Based on my debugging, this seems to be a bug with the version of wgpu being used by vello that is specific to the Vulkan backend, the Metal backend on my Mac works fine.
To fix this, I updated to the latest versions of vello and winit, and refactored the repo to fix all of the breaking API changes.
Also I removed the "layout" feature from default features, as the "submodules/yoga" submodule doesn't exist.