feat(editor): 新增视频上传功能并优化编辑器体验

- 添加视频上传功能，支持提取视频第一帧作为封面
- 优化图片和视频上传的数量限制检查
- 修复编辑器内容为空判断逻辑，增加视频元素检测
- 改进链接插入功能，自动填充选中文本
- 调整表情选择插入方式，使用execCommand实现
- 优化附件提取逻辑，支持视频元素解析
- 添加编辑器点击事件处理，更新选区状态
- 修复样式问题，调整按钮悬停效果

component/latest-list/latest-list.txt

@@ -9,8 +9,10 @@
     </div>
     <div v-else class="slideshow-box">
         <div class="tab-list flexacenter">
-            <div class="tab-item newest" :class="{'pitch': postsTab == 'newest'}" @click="tabPostsItem('newest')">最新</div>
-            <div class="tab-item essence" :class="{'pitch': postsTab == 'essence'}" @click="tabPostsItem('essence')">精华</div>
+            <div class="tab-item newest" :class="{'pitch': postsTab == 'newest'}" @click="tabPostsItem('newest')">最新
+            </div>
+            <div class="tab-item essence" :class="{'pitch': postsTab == 'essence'}" @click="tabPostsItem('essence')">精华
+            </div>
         </div>
     </div>
     <div class="slideshow-content flexflex">
@@ -18,10 +20,13 @@
         <div class="newest-side-box side-box">
             <img class="bounding" src="/img/bounding-circle-green.svg" alt="" />
             <div class="box">
-                <a v-for="(item, index) in latestList" :key="index" class="item flexacenter vuehide" :href="'/details/' + item.uniqid" target="_blank">
-                    <div class="dot dot-green"></div>
-                    <div class="text one-line-display">{{ item.title || item.content }}</div>
-                </a>
+                <template v-for="(item, index) in latestList" :key="index">
+                    <a v-if="item.title || item.content" class="item flexacenter vuehide"
+                        :href="'/details/' + item.uniqid" target="_blank">
+                        <div class="dot dot-green"></div>
+                        <div class="text one-line-display">{{ item.title || item.content }}</div>
+                    </a>
+                </template>
             </div>
         </div>
 
@@ -29,11 +34,15 @@
         <div class="essence-side-box side-box">
             <img class="bounding" src="/img/bounding-circle-blue.svg" alt="" />
             <div class="box">
-                <a v-for="(item, index) in topList" :key="index" class="item flexacenter vuehide" :href="'/details/' + item.uniqid" target="_blank">
-                    <div class="dot"></div>
-                    <div class="text one-line-display">{{ item.title || item.content }}</div>
-                </a>
+                <template v-for="(item, index) in topList" :key="index">
+                    <a v-if="item.title || item.content" class="item flexacenter vuehide"
+                        :href="'/details/' + item.uniqid" target="_blank">
+                        <div class="dot"></div>
+                        <div class="text one-line-display">{{ item.title || item.content }}</div>
+                    </a>
+                </template>
+
             </div>
         </div>
     </div>
-</div>
+</div>