docs: improve doucmentation

improve doucmentation and fix small store changes

docs-site/docs/user-guide/voice-channels.md

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+---
+sidebar_position: 4
+---
+
+# Voice Channels and Calls
+
+Voice channels are live rooms inside a server. Join one when you want to talk, share camera, or share your screen.
+
+## Join a Voice Channel
+
+1. Open the server from the left server rail.
+2. Find **Voice Channels** in the server side panel.
+3. Click the voice channel you want to join.
+4. Allow microphone access if your system asks.
+5. Use the voice controls to manage your call.
+
+When you join, other users in the same voice channel can hear you unless you are muted. Users in other voice channels are not part of your live voice room.
+
+## Voice Controls
+
+The voice controls can include:
+
+| Control | What it does |
+| --- | --- |
+| Mute microphone | Stops sending your microphone audio. |
+| Deafen | Stops playback and usually mutes your microphone too. |
+| Camera | Starts or stops webcam video. |
+| Screen share | Shares a screen or window. |
+| Settings | Opens voice device and quality settings. |
+| Leave | Disconnects from the voice channel. |
+
+## Screen Sharing
+
+1. Join a voice channel.
+2. Click screen share.
+3. Choose a screen or window.
+4. Choose whether to include system audio when available.
+5. Stop sharing from the voice controls when done.
+
+The screen share picker can show screens and windows. Desktop audio support depends on operating system support and the selected source.
+
+## Voice Workspace
+
+When someone shares camera or screen, the voice workspace can expand into a larger media area. It can show focused streams, a grid of streams, or a minimized mini-window.
+
+## Floating Voice Controls
+
+If you navigate away from the server while still connected to voice, MetoYou can show floating voice controls. Use them to return to the voice server or leave the call.
+
+## Voice Settings
+
+Voice settings can include:
+
+- input device;
+- output device;
+- input volume;
+- output volume;
+- audio bitrate;
+- latency profile;
+- noise reduction;
+- screen share quality;
+- system audio preference.
+
+## Troubleshooting
+
+| Problem | Try this |
+| --- | --- |
+| Nobody hears you | Check mute, input device, system microphone permission, and input volume. |
+| You hear nobody | Check deafen, output device, output volume, and whether others are in the same voice channel. |
+| Screen share is missing | Check desktop permissions and try a different screen or window. |
+| Voice drops after switching servers | Return to the server with the active voice session or leave and rejoin the voice channel. |
+
+Voice and screen sharing use peer-to-peer WebRTC media. The signaling server helps users connect, but the media itself travels through peer connections.