Replace last occurences of "private" with "personal"

app/Locale/zh_TW/translations.php

@@ -373,7 +373,7 @@ return array(
     'Webhook settings' => 'Webhook 設定',
     'Reset token' => '重設 token',
     'API endpoint:' => 'API endpoint：',
-    'Refresh interval for private board' => '私人看板的更新時間',
+    'Refresh interval for personal board' => '私人看板的更新時間',
     'Refresh interval for public board' => '公共看板的更新時間',
     'Task highlight period' => '任務高亮時間',
     'Period (in second) to consider a task was modified recently (0 to disable, 2 days by default)' => '多久内的任務視為剛剛修改(單位：秒,設為0提用，預設是2天',
@@ -1280,7 +1280,7 @@ return array(
     'Project ID' => '專案ID',
     'Project name' => '專案名',
     'Public' => '公開',
-    'Private' => '私有',
+    'Personal' => '私有',
     '%d tasks' => '%d 任務',
     '%d task' => '%d 任務',
     'Task ID' => '任務ID',