test: add stories for `MkChannelPreview`

packages/frontend/src/components/MkChannelList.stories.impl.ts

@@ -0,0 +1,2 @@
+import MkChannelList from './MkChannelList.vue';
+void MkChannelList;

packages/frontend/src/components/MkChannelPreview.stories.impl.ts

@@ -0,0 +1,32 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import { StoryObj } from '@storybook/vue3';
+import { channel } from '../../.storybook/fakes';
+import MkChannelPreview from './MkChannelPreview.vue';
+export const Default = {
+	render(args) {
+		return {
+			components: {
+				MkChannelPreview,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkChannelPreview v-bind="props" / >',
+		};
+	},
+	args: {
+		channel: channel(),
+	},
+	parameters: {
+		layout: 'default',
+	},
+} satisfies StoryObj<typeof MkChannelPreview>;