i18n(zh-CN): update translation

cosmic-applet-power/i18n/zh-CN/cosmic_applet_power.ftl

@@ -3,6 +3,7 @@ settings = 设置...
 lock-screen = 锁定屏幕
 lock-screen-shortcut = Super + Escape
 log-out = 登出
+log-out-shortcut = Super + Shift + Escape
 suspend = 挂起
 restart = 重启
 shutdown = 关机
@@ -10,27 +11,27 @@ confirm = 确认
 cancel = 取消
 confirm-button = {
     $action -> 
-        [restart] { 重启 }
-        [suspend] { 挂起 }
-        [shutdown] 关机
-        [log-out] { 注销 }
-        *[other] { 确认 }
+        [restart] { restart }
+        [suspend] { suspend }
+        [shutdown] { shutdown }
+        [log-out] { log-out }
+        *[other] { confirm }
 }
 confirm-title = 
     确认要 { $action -> 
-        [restart] { 重启 }
-        [suspend] { 挂起 }
-        [shutdown] { 关机 }
-        [log-out] 退出所有应用并注销
+        [restart] { restart }
+        [suspend] { suspend }
+        [shutdown] { shutdown }
+        [log-out] 退出所有应用并 { log-out }
         *[other] 应用所选操作
     } 吗？
 confirm-body = 
     系统将在 { $countdown } 秒内自动 { $action ->
-        [restart] 重启
-        [suspend] 挂起
-        [shutdown] 关机
-        [lock-screen] 锁定屏幕
-        [log-out] 登出
+        [restart] { restart }
+        [suspend] { suspend }
+        [shutdown] { shutdown }
+        [lock-screen] { lock-screen }
+        [log-out] { log-out }
         *[other] 应用所选操作
-    }
+    } 。