feat(frontend): 画像を投稿前にプレビュー可能に (#15341)

* feat(client): 画像をプレビュー可能に

* Update Changelog

* SPDX

* 消えてたのFix

* Add storybook for MkImgPreviewDialog

* backgroundのスタイル変更

Co-authored-by: kakkokari-gtyih <67428053+kakkokari-gtyih@users.noreply.github.com>

* Add MkImgPreviewDialog to storybook generator

* Update packages/frontend/.storybook/generate.tsx

---------

Co-authored-by: kakkokari-gtyih <67428053+kakkokari-gtyih@users.noreply.github.com>

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

@@ -0,0 +1,40 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { StoryObj } from '@storybook/vue3';
+import { file } from '../../.storybook/fakes.js';
+import MkImgPreviewDialog from './MkImgPreviewDialog.vue';
+export const Default = {
+	render(args) {
+		return {
+			components: {
+				MkImgPreviewDialog,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkImgPreviewDialog v-bind="props" />',
+		};
+	},
+	args: {
+		file: file(),
+	},
+	parameters: {
+		chromatic: {
+			// NOTE: ロードが終わるまで待つ
+			delay: 3000,
+		},
+		layout: 'centered',
+	},
+} satisfies StoryObj<typeof MkImgPreviewDialog>;