Implement OnyxStepper - Githubissues

@jannick-ux Do we plan to create an additional component for entering very large numbers or numbers with many decimal places? If so, we don't need to implement the BigInt and custom decimal type for this ticket
@jannick-ux Idea: Should we use monospace font?

We want to support a stepper component that is optimised for entering numbers.

[ ] design is implemented (and numbers are always centered)
[ ] supports positive, negative and decimal numbers
[ ] supports even and decimal steps
[ ] supports both dot and comma for entering decimal values
[ ] can optionally put into "strip step" mode so that when manually entering values that do not fit the step size, a stepMismatch error is shown
[ ] can optionally define a "precision" for the displayed value to always display the given number of decimals places, e.g. "3.00"
[ ] decrease/increase button is disabled when min/max value is reached
[ ] can be set to loading state
the following native HTML properties are supported:
- [ ] autofocus
- [ ] autocomplete
[ ] error handling / error messages are supported for min, max and step property (see this comment)

The following component requirements are implemented:
- [ ] skeleton
- [ ] density
- [ ] example usage added to apps/alpha-test-app/src/views/HomeView.vue
- [ ] example usage added to apps/alpha-test-app/src/views/FormDemo.vue
[ ] covered by component tests
[ ] screenshot tests are updated
[ ] follow-up tickets were created if necessary
[ ] updated version + documentation is deployed
[ ] Storybook can show the feature
[ ] Storybook code snippet of new/changed examples are checked that they are generated correctly
[ ] Set task to In Approval

Approval

SchwarzIT / onyx