fix: 5890 set upper bound for vertical jump

[dv29]

Connections #5890

Description Its adding bounds to the vertical jump on bunnymark example. It will also update size of the surface on resize.

Testing

1. cargo xtask run-wasm
2. go to http://localhost:8000/?backend=webgpu&example=bunnymark
3. The bunnies should not jump out of the vertical bounds and should resize when the screen size changes.

Checklist

• [x] Run cargo fmt.
• [x] Run cargo clippy. If applicable, add:
  • [x] --target wasm32-unknown-unknown
  • [x] --target wasm32-unknown-emscripten
• [x] Run cargo xtask test to run tests.
• [ ] Add change to CHANGELOG.md. See simple instructions inside file.