view camera (#11040)

* view camera

Signed-off-by: 21pages <sunboeasy@gmail.com>

* `No cameras` prompt if no cameras available,  `peerGetSessionsCount` use
connType as parameter

Signed-off-by: 21pages <sunboeasy@gmail.com>

* fix, use video_service_name rather than display_idx as key in qos,etc

Signed-off-by: 21pages <sunboeasy@gmail.com>

---------

Signed-off-by: 21pages <sunboeasy@gmail.com>
Co-authored-by: Adwin White <adwinw01@gmail.com>
Co-authored-by: RustDesk <71636191+rustdesk@users.noreply.github.com>

src/lang/cn.rs

@@ -657,5 +657,10 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Untagged", "无标签"),
         ("new-version-of-{}-tip", "{} 版本更新"),
         ("Accessible devices", "可访问的设备"),
+        ("View camera", "查看摄像头"),
+        ("upgrade_remote_rustdesk_client_to_{}_tip", "请在远程端将 RustDesk 客户端升级至版本 {} 或更新版本！"),
+        ("view_camera_unsupported_tip", "您的远程端不支持查看摄像头。"),
+        ("Enable camera", "允许查看摄像头"),
+        ("No cameras", "没有摄像头"),
     ].iter().cloned().collect();
 }