fix: 补充新增标签的国际化翻译

Lane A/P2 新增的 Signal/Connections/Refresh Interval 三个 qsTr 标签
未更新 .ts 翻译文件，导致中文系统下显示英文。补入对应翻译

translations/jnetapplet_zh_CN.ts

@@ -96,6 +96,16 @@
         <source>Dropped</source>
         <translation>丢包</translation>
     </message>
+    <message>
+        <location filename="../package/components/NetworkPopup.qml" line="317"/>
+        <source>Signal</source>
+        <translation>信号</translation>
+    </message>
+    <message>
+        <location filename="../package/components/NetworkPopup.qml" line="566"/>
+        <source>Connections</source>
+        <translation>连接</translation>
+    </message>
 </context>
 <context>
     <name>NetCommon</name>
@@ -174,6 +184,11 @@
         <source>Font Color</source>
         <translation>字体颜色</translation>
     </message>
+    <message>
+        <location filename="../package/components/SettingsWindow.qml" line="311"/>
+        <source>Refresh Interval</source>
+        <translation>刷新间隔</translation>
+    </message>
     <message>
         <location filename="../package/components/SettingsWindow.qml" line="446"/>
         <source>Warning</source>