Internalize uuid package

[madsrasmussen]

This PR internalizes the uuid package so it is no longer available as an external import.

Breaking change:
It is no longer possible to import from @umbraco-cms/backoffice/external/uuid;

Replacement:
The same functionality can be found on the UmbId class imported from @umbraco-cms/backoffice/id;

import { UmbId } from '@umbraco-cms/backoffice/id';

const id = UmbId.new();
const isValid = UmbId.validate(id);

[Copilot]

Copilot reviewed 3 out of 7 changed files in this pull request and generated no comments.

Files not reviewed (4)

• src/Umbraco.Web.UI.Client/package-lock.json: Language not supported
• src/Umbraco.Web.UI.Client/package.json: Language not supported
• src/Umbraco.Web.UI.Client/src/packages/core/package.json: Language not supported
• src/Umbraco.Web.UI.Client/tsconfig.json: Language not supported