💄 Unified design of single attachment uploader

assets/locales/en_us.json

@@ -157,6 +157,9 @@
   "postListNews": "News",
   "postListFriends": "Friends",
   "postListShuffle": "Random",
+  "attachmentThumbnail": "Thumbnail",
+  "attachmentThumbnailAttachmentNew": "Upload thumbnail",
+  "attachmentThumbnailAttachment": "Attachment serial number",
   "postEditorModeStory": "Post a post",
   "postEditorModeArticle": "Post an article",
   "postEditor": "Post editor",

assets/locales/zh_cn.json

@@ -168,6 +168,9 @@
   "postListNews": "新鲜事",
   "postListFriends": "好友圈",
   "postListShuffle": "打乱看",
+  "attachmentThumbnail": "附件缩略图",
+  "attachmentThumbnailAttachmentNew": "上传附件作为缩略图",
+  "attachmentThumbnailAttachment": "附件序列号",
   "postNew": "创建新帖子",
   "postNewInRealmHint": "在领域 @realm 里发表新帖子",
   "postAction": "发表",