i18n: update i18n files from po4a run

i18n/zh-Hans/docusaurus-plugin-content-docs/current/services/file-sharing.mdx

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+---
+sidebar_position: 2
+---
+# File Sharing
+
+<figure><img src="/img/docs/media-type-explore.png" alt=""/><figcaption></figcaption></figure>
+
+## Share Media, Files and Digital Books
+
+You can use your Butter Box to share media, files, and digital books. To
+display additional content in your portal, connect a USB drive containing
+the information you want to share.
+
+If you’d like more control over how your content is displayed, you can build
+a **static website** and share it through the Butter Box. Learn more in the
+[Content Packs](../content-packs/) section.
+
+
+
+### Add files to your USB Drive
+
+Place individual files directly in the **main directory** (root) of your USB
+drive. Or, create folders to organize your files (eg. "Books", "Music",
+"Reports)
+
+<figure><img src="/img/docs/Screenshot 2025-08-16 at 9.50.15 PM.png" alt=""/><figcaption><p>USB directory when viewed in Finder on desktop</p></figcaption></figure>
+
+**Things to Know**
+
+* The **folder names you use** on your USB drive will be shown in the Butter
+  Box portal.
+* Organizing content into folders makes it easier for others to browse and
+  download.
+
+### Connect to your Butter Box to view
+
+Insert the USB drive into your Butter Box. After connecting your USB drive
+to the Raspberry Pi you will see the **Files** tile displayed when you open
+the Butter Box portal.
+
+<div><figure><img src="/img/docs/Screenshot_20260414-122810.png" alt=""/><figcaption></figcaption></figure> <figure><img src="/img/docs/Screenshot_20260414-122821.png" alt=""/><figcaption></figcaption></figure></div>
+
+
+
+**Troubleshooting**
+
+If you don’t see the **Files** tile, try the following actions:
+
+* Remove the USB drive from the Butter Box. Then re-insert the USB drive.
+* Turn on/off airplane mode. Reconnect Butter Box wifi.
+* Refresh the browser page.
+
+If you are still having trouble you may need to [Reformat Your USB
+Drive](../faq/how-to-reformat-your-usb-drive).
+
+
+
+
+

i18n/zh-Hans/docusaurus-plugin-content-docs/current/services/index.mdx

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+---
+sidebar_position: 1
+---
+# Features
+

i18n/zh-Hans/docusaurus-plugin-content-docs/current/services/local-chat.mdx

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+---
+description: 'A place for anyone connected to the box to share'
+sidebar_position: 3
+---
+
+# Local Chat
+
+There is one local chat on your Butter Box that is open to anyone who is
+able to join the box. If they can open the portal, they can open the chat
+and say or post anything they want. Depending on your use case, moderation
+capabilities may be important.
+
+First, let's look at what you can and can't do with this local chat.
+
+✅  **You Can**<br/>
+
+* Host videos up to 5 GB PDFs, images, record, audio messages, share
+  pre-recorded audio messages or music
+* Download the full chat or any individual piece of content or media that
+  people have shared
+
+❌  **You Cannot**<br/>
+
+* Use the chat to talk with people who are not connected to the Butter Box
+* Get notifications when there are new posts or messages
+* See the messages unless you are connected to the Butter Box
+
+
+
+## Moderation
+
+A Butter Box offers moderation features for the local chat. In order to
+access these features, you need to login as the admin of the room.
+
+### Become the Admin
+
+### Logout as Guest
+
+When you open the local chat, you are assigned a guest identity. First
+logout of the account that was created for you.
+
+### Login as Admin
+
+Login to the `butterbox-admin` account. Username and password are both
+`butterbox-admin`.
+
+### Change Admin Password
+
+Visit your user profile to change the password. At your discretion, you may
+also wish to change your display name so that other users will recognize
+you.
+
+### Moderation Features
+
+Once you are an admin, you have access to the following features:
+
+* **Set a message timer**
+* **Delete messages**
+* **Promote members to moderator or admin**
+* **Kick members out.**
+  * Keep in mind that someone can simply rejoin as a new guest if they
+    reconnect to the box
+* **Delete the room.**
+  * Warning: If you delete the room, you will no longer have a local chat on
+    your Butter Box. To get one back, you will have to flash a new image of
+    the Butter Box software to your SD card.
+
+
+
+## Say Even More—Direct Messages and Private Rooms
+
+In addition to the local chat, you can create any number of private rooms
+from the same interface.
+
+### Things To Know
+
+* Each room will have it's own QR code.
+* Private rooms are not discoverable from the Butter Box portal.
+* If you create a private room, you have to share the QR code physically to
+  whomever you want to join **who is also connected to the box.**
+* Every private chat that you are part of, will be easy for **you** to
+  find. They will all show up in your room list.
+
+### Instructions
+
+You can create a private room from two different places in the message board
+interface.
+
+### Open from Avatar Modal
+
+Tap on your avatar in the top bar. Select **new room.**
+
+| <img src="/img/docs/image.png" alt="" data-size="original"/> |   |
+| -------------------------------------------------------------------- | - |
+
+
+
+### Open from Room List
+
+Your room list is accessible from your profile page. Once here, select **new
+room.**
+
+<figure><img src="/img/docs/Screenshot 2026-01-20 at 1.42.17 PM.png" alt=""/><figcaption></figcaption></figure>
+
+
+
+
+
+
+

i18n/zh-Hans/docusaurus-plugin-content-docs/current/services/secure-messenger.mdx

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+---
+description: 'Using Delta Chat with a Butter Box'
+sidebar_position: 4
+---
+
+# Private Messenger
+
+With the Private Messenger service, you can exchange secure messages with
+people you know. [Delta Chat](https://delta.chat/) is a messaging app that
+uses email protocols to exchange messages. When used through a Butter Box,
+people who create accounts on the same Butter Box can send messages to each
+other without the internet.
+
+Think of the Butter Box like a local post office. Whenever you connect to
+the Box’s network, your Delta Chat app can send outgoing messages and sync
+to receive any new ones waiting for you.
+