feat(ratings): mix cutoff filter for random flows and home, i18n

Apply the same per-axis star cutoff to random mix (multi-batch fetch until
full), random albums, Hero, and Home hero/discover rows. Prefetch artist and
album ratings via Subsonic when list payloads omit them. Exclude items when
0 < rating ≤ threshold; 0 or missing counts as unrated.

Settings: rating filter description interpolates sidebar menu labels; Russian
strings for custom title bar; short axis labels aligned across locales.

src/locales/zh.ts

@@ -489,17 +489,15 @@ export const zhTranslation = {
     ratingsSectionTitle: '评分',
     ratingsSkipStarTitle: '跳过以评 1 星',
     ratingsSkipStarDesc:
-      '同一曲目手动跳过 N 次后，若尚未评分则在服务器上设为 1 星。',
+      '连续跳过 N 次后将曲目设为 1 星。仅适用于此前未评分的曲目。',
     ratingsSkipStarThresholdLabel: '跳过次数（至 1★）',
-    ratingsSkipStarThresholdHint:
-      '仅统计用“下一曲”或媒体键离开该曲的情况；自然播放结束不计入。曲目已有 1 星或以上时不改变。',
     ratingsMixFilterTitle: '按评分筛选',
     ratingsMixFilterDesc:
-      '在随机混合与随机专辑中筛选低评分内容。再次点击同一颗星可关闭该列阈值。',
-    ratingsMixMinSong: '歌曲（曲目评分）',
+      '在{{mix}}与{{albums}}中筛选低评分内容。再次点击所选星标可关闭阈值。',
+    ratingsMixMinSong: '歌曲',
     ratingsMixMinAlbum: '专辑',
     ratingsMixMinArtist: '艺人',
-    ratingsMixMinThresholdAria: '最低星数（{{label}}）',
+    ratingsMixMinThresholdAria: '最低星数：{{label}}',
     backupTitle: '备份与恢复',
     backupExport: '导出设置',
     backupExportDesc: '将所有设置、服务器配置、Last.fm 配置、主题、均衡器和快捷键保存到 .psybkp 文件。密码以明文存储——请妥善保管该文件。',