feat:调整首页各个模块的数量显示

- 将最新音乐、热门音乐、最新歌单和最新歌手的数量从 8条调整为 5 条- 此修改旨在优化首页内容展示，减少每个模块的条目数，提高用户浏览体验

music-qianduan/src/views/Home.vue

@@ -33,7 +33,7 @@ const loadingNewSingers = ref(false)
 const fetchLatestMusic = async () => {
   loadingNewSongs.value = true
   try {
-    const res = await getLatestMusic(8) // 获取8首最新音乐
+    const res = await getLatestMusic(5) // 获取5首最新音乐
     if (res.code === 200) {
       newSongs.value = res.data.map(item => ({
         ...item,
@@ -57,7 +57,7 @@ const fetchHotMusic = async () => {
   loadingHotSongs.value = true
   try {
     // 注意：这里调用的是新的 hot-music API
-    const res = await getHotMusic(8) // 获取8首热门音乐
+    const res = await getHotMusic(5) // 获取5首热门音乐
     if (res.code === 200) {
       hotSongs.value = res.data.map(item => ({
         ...item,
@@ -79,7 +79,7 @@ const fetchHotMusic = async () => {
 const fetchLatestPlaylist = async () => {
   loadingNewPlaylists.value = true
   try {
-    const res = await getLatestPlaylist(8) // 获取8个最新歌单
+    const res = await getLatestPlaylist(5) // 获取5个最新歌单
     if (res.code === 200) {
       newPlaylists.value = res.data
       console.log('最新歌单数据:', newPlaylists.value)
@@ -98,7 +98,7 @@ const fetchLatestPlaylist = async () => {
 const fetchLatestSinger = async () => {
   loadingNewSingers.value = true
   try {
-    const res = await getLatestSinger(8) // 获取8个最新歌手
+    const res = await getLatestSinger(5) // 获取5个最新歌手
     if (res.code === 200) {
       newSingers.value = res.data.map(item => ({
         ...item,