Add Chinese Simplified translation

ui/package-lock.json

@@ -13122,6 +13122,11 @@
         "ra-core": "^3.3.3"
       }
     },
+    "ra-language-chinese": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/ra-language-chinese/-/ra-language-chinese-2.0.5.tgz",
+      "integrity": "sha512-BwaqQWDNhQX/Ufe5Ki2GrJ3k5OGmH8dKrQn/npvRik80+tpN4Ew4vbyS8o4E74B4UfSJ8Sj10YdB0bA6FZnAOA=="
+    },
     "ra-language-english": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/ra-language-english/-/ra-language-english-3.2.0.tgz",

ui/package.json

@@ -12,6 +12,7 @@
     "md5-hex": "^3.0.1",
     "prop-types": "^15.7.2",
     "ra-data-json-server": "^3.3.3",
+    "ra-language-chinese": "^2.0.5",
     "ra-language-italian": "^3.0.0",
     "ra-language-portuguese": "^1.6.0",
     "react": "^16.13.1",

ui/src/i18n/cn.js

@@ -0,0 +1,136 @@
+import deepmerge from 'deepmerge'
+import chineseMessages from 'ra-language-chinese'
+
+export default deepmerge(chineseMessages, {
+  languageName: '简体中文',
+  resources: {
+    song: {
+      name: '歌曲 |||| 曲库',
+      fields: {
+        title: '标题',
+        artist: '歌手',
+        album: '专辑',
+        path: '路径',
+        genre: '类型',
+        compilation: '收录',
+        albumArtist: '专辑歌手',
+        duration: '时长',
+        year: '年份',
+        playCount: '播放次数',
+        trackNumber: '音轨 #',
+        size: '大小',
+        updatedAt: '上次更新'
+      },
+      bulk: {
+        addToQueue: '稍后播放'
+      }
+    },
+    album: {
+      name: '专辑 |||| 专辑',
+      fields: {
+        name: '名称',
+        albumArtist: '专辑歌手',
+        artist: '歌手',
+        duration: '时长',
+        songCount: '曲目数',
+        playCount: '播放次数',
+        compilation: '合辑',
+        year: '年份'
+      },
+      actions: {
+        playAll: '播放',
+        playNext: '播放下一首',
+        addToQueue: '稍后播放',
+        shuffle: '刷新'
+      }
+    },
+    artist: {
+      name: '歌手 |||| 歌手',
+      fields: {
+        name: '名称',
+        albumCount: '歌手数'
+      }
+    },
+    user: {
+      name: '用户 |||| 用户',
+      fields: {
+        userName: '用户名',
+        isAdmin: '管理员',
+        lastLoginAt: '最后一次访问',
+        updatedAt: '上次修改',
+        name: '名称'
+      }
+    },
+    player: {
+      name: '用户 |||| 用户',
+      fields: {
+        name: '名称',
+        transcodingId: '转码',
+        maxBitRate: '最大比特率',
+        client: '应用程序',
+        userName: '用户',
+        lastSeen: '最后一次访问'
+      }
+    },
+    transcoding: {
+      name: '转码 |||| 转码',
+      fields: {
+        name: '名称',
+        targetFormat: '格式',
+        defaultBitRate: '默认比特率',
+        command: '命令'
+      }
+    }
+  },
+  ra: {
+    auth: {
+      welcome1: '感谢您安装Navidrome!',
+      welcome2: '为了开始使用,请创建一个管理员账户',
+      confirmPassword: '确认密码',
+      buttonCreateAdmin: '创建管理员'
+    },
+    validation: {
+      invalidChars: '请只使用字母和数字',
+      passwordDoesNotMatch: '密码不匹配'
+    }
+  },
+  menu: {
+    library: '曲库',
+    settings: '设置',
+    version: '版本 %{version}',
+    theme: '主题',
+    personal: {
+      name: '个性化',
+      options: {
+        theme: '主题',
+        language: '语言'
+      }
+    }
+  },
+  player: {
+    playListsText: '播放队列',
+    openText: '打开',
+    closeText: '关闭',
+    notContentText: '无音乐',
+    clickToPlayText: '点击播放',
+    clickToPauseText: '点击暂停',
+    nextTrackText: '下一首',
+    previousTrackText: '上一首',
+    reloadText: 'Reload',
+    volumeText: '音量',
+    toggleLyricText: '切换歌词',
+    toggleMiniModeText: '最小化',
+    destroyText: '损坏',
+    downloadText: '下载',
+    removeAudioListsText: '清空播放列表',
+    controllerTitle: '',
+    clickToDeleteText: `点击删除 %{name}`,
+    emptyLyricText: '无歌词',
+    playModeText: {
+      order: '顺序播放',
+      orderLoop: '列表循环',
+      singleLoop: '单曲循环',
+      shufflePlay: '随机播放'
+    }
+  }
+})

ui/src/i18n/index.js

@@ -2,6 +2,7 @@ import deepmerge from 'deepmerge'
 import en from './en'
 import it from './it'
 import pt from './pt'
+import cn from './cn'
 
 const addLanguages = (lang) => {
   Object.keys(lang).forEach((l) => (languages[l] = deepmerge(en, lang[l])))
@@ -9,7 +10,7 @@ const addLanguages = (lang) => {
 const languages = { en }
 
 // Add new languages to the object bellow
-addLanguages({ it, pt })
+addLanguages({ cn, it, pt })
 
 // "Hack" to make "albumSongs" resource use the same translations as "song"
 Object.keys(languages).forEach(