Extensions: Adds all yet unused Lit directives to @umbraco-cms/backoffice/external/lit (closes #20961) (#20963)

* Adds choose directive to @umbraco-cms/backoffice/external/lit

This can then allow choose to be imported like so
import { html, customElement, LitElement, property, css, choose } from '@umbraco-cms/backoffice/external/lit';

* Exports all of Lits directives for @umbraco-cms/backoffice/external/lit

Also puts them in alphabetical order to help add any new ones Lit may add in the future

Author: warrenbuckley

src/Umbraco.Web.UI.Client/src/external/lit/index.ts

@@ -1,12 +1,24 @@
 export * from 'lit';
 export * from 'lit/decorators.js';
 export { directive, AsyncDirective, type PartInfo } from 'lit/async-directive.js';
+export * from 'lit/directives/async-append.js';
+export * from 'lit/directives/async-replace.js';
+export * from 'lit/directives/cache.js';
+export * from 'lit/directives/choose.js';
 export * from 'lit/directives/class-map.js';
+export * from 'lit/directives/guard.js';
 export * from 'lit/directives/if-defined.js';
+export * from 'lit/directives/join.js';
+export * from 'lit/directives/keyed.js';
+export * from 'lit/directives/live.js';
 export * from 'lit/directives/map.js';
+export * from 'lit/directives/range.js';
 export * from 'lit/directives/ref.js';
 export * from 'lit/directives/repeat.js';
 export * from 'lit/directives/style-map.js';
+export * from 'lit/directives/template-content.js';
 export * from 'lit/directives/unsafe-html.js';
+export * from 'lit/directives/unsafe-mathml.js';
+export * from 'lit/directives/unsafe-svg.js';
 export * from 'lit/directives/until.js';
 export * from 'lit/directives/when.js';