refactor: 精简后台编辑器页面的操作按钮

- 移除文章和页面（新建与编辑）右上角的“返回”按钮
- 移除文章编辑页面“保存”按钮上的图标及相关样式
- 将文章新建页面的“发布...”按钮文案精简为“发布”
- 清理未使用的 `ArrowLeft`、`Save` 图标及 `resolve` 导入引用

src/routes/admin/pages/[id]/+page.svelte

@@ -10,7 +10,6 @@
 	import EditorSidebarTabs from '$lib/components/admin/EditorSidebarTabs.svelte';
 	import ArticleAttachments from '$lib/components/admin/ArticleAttachments.svelte';
 	import { untrack } from 'svelte';
-	import { ArrowLeft } from '@lucide/svelte';
 
 	let { data, form }: { data: PageData; form: ActionData } = $props();
 	const initialData = $state.snapshot(untrack(() => data));
@@ -32,9 +31,6 @@
 		<Button href={resolve('/[slug]', { slug: data.page.slug })} target="_blank" variant="secondary">
 			前台预览
 		</Button>
-		<Button href={resolve('/admin/pages')} variant="secondary">
-			<ArrowLeft size={14} style="margin-right: 6px;" aria-hidden="true" />返回
-		</Button>
 	</div>
 </div>
 

src/routes/admin/pages/new/+page.svelte

@@ -1,5 +1,4 @@
 <script lang="ts">
-	import { resolve } from '$app/paths';
 	import { page } from '$app/stores';
 	import type { ActionData } from './$types';
 	import ContentEditor from '$lib/components/admin/ContentEditor.svelte';
@@ -11,7 +10,6 @@
 	import ArticleAttachments from '$lib/components/admin/ArticleAttachments.svelte';
 
 	import { createSlugAutoHandler } from '$lib/utils/slugify';
-	import { ArrowLeft } from '@lucide/svelte';
 
 	let { form }: { form: ActionData } = $props();
 
@@ -47,9 +45,6 @@
 	<h2>新建独立{$page.data.aliases?.page || '页面'}</h2>
 	<div class="header-actions">
 		<Button type="submit" form="page-form" variant="primary">发布</Button>
-		<Button href={resolve('/admin/pages')} variant="secondary">
-			<ArrowLeft size={14} style="margin-right: 6px;" aria-hidden="true" />返回
-		</Button>
 	</div>
 </div>
 

src/routes/admin/posts/[id]/+page.svelte

@@ -1,10 +1,9 @@
 <script lang="ts">
 	/* eslint-disable @typescript-eslint/no-explicit-any */
-	import { resolve } from '$app/paths';
 	import { page } from '$app/stores';
 	import type { PageData, ActionData } from './$types';
 	import { deserialize } from '$app/forms';
-	import { Save, X } from '@lucide/svelte';
+	import { X } from '@lucide/svelte';
 	import ContentEditor from '$lib/components/admin/ContentEditor.svelte';
 	import { EditorOutline } from '$lib/editor/outline.svelte';
 	import FeaturedImagePicker from '$lib/components/admin/FeaturedImagePicker.svelte';
@@ -114,11 +113,7 @@
 <div class="admin-page-header">
 	<h2>编辑</h2>
 	<div class="header-actions">
-		<Button type="submit" form="post-form" variant="primary">
-			<Save class="btn-icon" size={16} aria-hidden="true" />
-			保存
-		</Button>
-		<Button href={resolve('/admin/posts')} variant="secondary">返回</Button>
+		<Button type="submit" form="post-form" variant="primary">保存</Button>
 	</div>
 </div>
 
@@ -322,18 +317,6 @@
 		gap: 10px;
 	}
 
-	:global(.btn-icon) {
-		width: 16px;
-		height: 16px;
-		flex: none;
-		margin-right: 6px;
-		stroke: currentColor;
-		stroke-width: 2;
-		stroke-linecap: round;
-		stroke-linejoin: round;
-		fill: none;
-	}
-
 	.editor-header {
 		display: flex;
 		justify-content: space-between;

src/routes/admin/posts/new/+page.svelte

@@ -1,11 +1,10 @@
 <script lang="ts">
 	/* eslint-disable @typescript-eslint/no-explicit-any */
 	/* eslint-disable @typescript-eslint/no-unused-vars */
-	import { resolve } from '$app/paths';
 	import { page } from '$app/stores';
 	import type { PageData, ActionData } from './$types';
 	import { deserialize } from '$app/forms';
-	import { ArrowLeft, X } from '@lucide/svelte';
+	import { X } from '@lucide/svelte';
 	import ContentEditor from '$lib/components/admin/ContentEditor.svelte';
 	import { EditorOutline } from '$lib/editor/outline.svelte';
 	import FeaturedImagePicker from '$lib/components/admin/FeaturedImagePicker.svelte';
@@ -132,12 +131,7 @@
 <div class="admin-page-header">
 	<h2>新{$page.data.aliases?.post || '文章'}</h2>
 	<div class="header-actions">
-		<Button type="submit" form="post-form" variant="primary">
-			发布{$page.data.aliases?.post || '文章'}
-		</Button>
-		<Button href={resolve('/admin/posts')} variant="secondary">
-			<ArrowLeft size={14} style="margin-right: 6px;" aria-hidden="true" />返回
-		</Button>
+		<Button type="submit" form="post-form" variant="primary">发布</Button>
 	</div>
 </div>