Remove theme itzbund from docs (#272)

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- [x] Meaningful pull request title for the release notes
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Author: laske185

docs/10-get-started/1-first-steps.mdx

@@ -168,10 +168,10 @@ kolibri.plugin.ts
 import type { Plugin } from 'vue';
 import { defineCustomElements } from '@public-ui/components/dist/loader';
 import { register } from '@public-ui/components';
-import { ITZBund } from '@public-ui/themes';
+import { DEFAULT } from '@public-ui/theme-default';
 export const ComponentLibrary: Plugin = {
 	install() {
-		register(ITZBund, defineCustomElements)
+		register(DEFAULT, defineCustomElements)
 			.then(() => console.log('Components registered'))
 			.catch(console.warn);
 	},
@@ -357,8 +357,8 @@ Sofern Schriftarten und/oder Icons verwendet werden, müssen diese, wie oben bes
 <script type="module">
 	import { register } from 'https://unpkg.com/@public-ui/components/dist/esm/index.js';
 	import { defineCustomElements } from 'https://unpkg.com/@public-ui/components/dist/loader/index.js';
-	import { ITZBund } from 'https://unpkg.com/@public-ui/themes/dist/index.mjs';
-	register(ITZBund, defineCustomElements).catch(console.warn);
+	import { DEFAULT } from 'https://unpkg.com/@public-ui/theme-default/dist/index.mjs';
+	register(DEFAULT, defineCustomElements).catch(console.warn);
 </script>
 ```
 

src/shares/theme.ts

@@ -1,12 +1,12 @@
 import type { SelectOption } from '@public-ui/components';
 
-export type Theme = 'unstyled' | 'default' | 'ecl-ec' | 'ecl-eu' | 'itzbund';
+export type Theme = 'unstyled' | 'default' | 'ecl-ec' | 'ecl-eu';
 
 export const isTheme = (value: unknown) => {
 	console.log('typeof value', typeof value);
 	return (
 		typeof value === 'string' &&
-		(value === 'unstyled' || value === 'default' || value === 'ecl-ec' || value === 'ecl-eu' || value === 'itzbund')
+		(value === 'unstyled' || value === 'default' || value === 'ecl-ec' || value === 'ecl-eu')
 	);
 };
 
@@ -32,8 +32,4 @@ export const THEME_OPTIONS: SelectOption<Theme>[] = [
 		label: 'European Union (ECL)',
 		value: 'ecl-eu',
 	},
-	{
-		label: 'Informationstechnikzentrum Bund',
-		value: 'itzbund',
-	},
 ];

src/theme/Root.tsx

@@ -1,6 +1,6 @@
 import { register } from '@public-ui/components';
 import { defineCustomElements } from '@public-ui/components/dist/loader';
-import { DEFAULT, ECL_EC, ECL_EU, ITZBund } from '@public-ui/themes';
+import { DEFAULT, ECL_EC, ECL_EU } from '@public-ui/themes';
 import type { FunctionComponent, PropsWithChildren } from 'react';
 import React, { useEffect, useState } from 'react';
 import type { Theme } from '../shares/theme';
@@ -9,7 +9,7 @@ export const Root: FunctionComponent<PropsWithChildren> = (props) => {
 	const [theme] = useState<Theme>('default');
 
 	useEffect(() => {
-		register([DEFAULT, ECL_EC, ECL_EU, ITZBund], [defineCustomElements], {
+		register([DEFAULT, ECL_EC, ECL_EU], [defineCustomElements], {
 			theme: {
 				detect: 'auto',
 			},