Built-in performance monitor network speed display module adjustment

### Description of the new feature / enhancement

网络使用情况可以记住上次选择的网卡选项进行展示

### Scenario when this would be used?

因为电脑存在多网卡，如果需要查看实际在用网卡的使用情况，每次重启都需要点击切换下一个网络直至切换导致正确网卡，是否可以记住上次选择的网卡选项进行展示？

### Supporting information

No file or test is named. Start by locating the built-in performance monitor's network speed display module and inspect how the selected network adapter is initialized. Done means the module remembers the previously selected adapter across restart and displays its usage without requiring repeated switching.

Written by the indexing model from the issue text.