✨ Attachment can link exists things

♿ Optimize upload progress

lib/translations/en_us.dart

@@ -13,6 +13,7 @@ const i18nEnglish = {
   'more': 'More',
   'share': 'Share',
   'feed': 'Feed',
+  'unlink': 'Unlink',
   'feedSearch': 'Search Feed',
   'feedSearchWithTag': 'Searching with tag #@key',
   'feedSearchWithCategory': 'Searching in category @category',
@@ -171,6 +172,9 @@ const i18nEnglish = {
   'attachmentAddCameraVideo': 'Capture video',
   'attachmentAddClipboard': 'Paste file',
   'attachmentAddFile': 'Attach file',
+  'attachmentAddLink': 'Link attachments',
+  'attachmentAddLinkHint': 'Enter attachment serial number to link that attachment',
+  'attachmentAddLinkInput': 'Serial number',
   'attachmentSetting': 'Adjust attachment',
   'attachmentAlt': 'Alternative text',
   'attachmentLoadFailed': 'Load Attachment Failed',

lib/translations/zh_cn.dart

@@ -21,6 +21,7 @@ const i18nSimplifiedChinese = {
   'more': '更多',
   'share': '分享',
   'feed': '资讯',
+  'unlink': '移除链接',
   'feedSearch': '搜索资讯',
   'feedSearchWithTag': '检索带有 #@key 标签的资讯',
   'feedSearchWithCategory': '检索位于分类 @category 的资讯',
@@ -160,6 +161,9 @@ const i18nSimplifiedChinese = {
   'attachmentAddCameraVideo': '拍摄视频',
   'attachmentAddClipboard': '粘贴文件',
   'attachmentAddFile': '附加文件',
+  'attachmentAddLink': '链接附件',
+  'attachmentAddLinkHint': '输入附件的神秘代号来链接对应附件',
+  'attachmentAddLinkInput': '神秘代号',
   'attachmentSetting': '调整附件',
   'attachmentAlt': '替代文字',
   'attachmentLoadFailed': '加载失败',