Fluid inputs: FluidNumberInput

[tay1orjones]

This issue is for the primary implementation and design of the FluidNumberInput component.

Checklist

• [ ] Fluid inputs: FluidNumberInput docs
  • [ ] Update "style" and "usage" tabs of component page to include Fluid variant
• [ ] Fluid inputs: provide Figma updates for FluidNumberInput
• [ ] Fluid inputs: Add FluidNumberInput experimental implementation
  • [ ] Place implementation within a new component, FluidComponentName
  • [ ] Add VRT tests via storybook story e2e setup
  • [ ] Add unit tests (likely simple, eg. "does the classname get added")
  • [ ] Add storybook example
  • [ ] Add it to the FluidForm story
  • [ ] Ensure styles are properly scoped to their own file
  • [ ] Add component: FluidNumberInput label to repo for triaging issues
• [ ] Fluid inputs: FluidNumberInputSkeleton?

Spec

Sketch file | Figma file