[BpkNudger] Simplify nudger to make it support only number types

[metalix2]

Updates to the Nudger to remove the ConfigurableNudger Component. To keep aligned with the designs the nudger is meant to only support number values.

Nudger Input can now be directly interacted with providing a way to set the desired value directly.

https://github.com/user-attachments/assets/2dd98201-3067-4244-8494-01e040823ee5

Remember to include the following changes:

• [x] Ensure the PR title includes the name of the component you are changing so it's clear in the release notes for consumers of the changes in the version e.g [KOA-123][BpkButton] Updating the colour
• [ ] README.md (If you have created a new component)
• [ ] Component README.md
• [x] Tests
• [x] Accessibility tests
  • The following checks were performed:
    • [ ] Ability to navigate using a keyboard only
    • [ ] Zoom functionality (Deque University explanation):
      • [ ] The page SHOULD be functional AND readable when only the text is magnified to 200% of its initial size
      • [ ] Pages must reflow as zoom increases up to 400% so that content continues to be presented in only one column i.e. Content MUST NOT require scrolling in two directions (both vertically and horizontally)
    • [ ] Ability to navigate using a screen reader only
• [x] Storybook examples created/updated
• [ ] For breaking changes or deprecating components/properties, migration guides added to the description of the PR. If the guide has large changes, consider creating a new Markdown page inside the component's docs folder and link it here

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	Warnings
:warning:	Package source files (e.g. `packages/package-name/src/Component.tsx`) were updated, but type files weren't. Have you checked that no types have changed?

Browser support

If this is a visual change, make sure you've tested it in multiple browsers.

Generated by :no_entry_sign: dangerJS against cdf8eaa5d2d453ca930cdee487715010c2320a3f

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