Feature: Reset window size & position

**Describe your issue**:
I'm using multiple screen, three at Office, two at home, last time I used NETworkManager the window was on the third screen at Office
today I'm at home with my two screens but I'm seeing only the bottom of the window of the apps (screenshot)

**Steps to reproduce the issue**:

1.launch the apps, put it on third screen, close the apps, reopen, still on third screen
2.going home , launching apps seeing bottom of the window, trying cascade window, stack window, window side by side
tha NETworkmanager window never come back on the current screens (home with two monitors)
3.the black part at the up left of the screenshot is the NETWorkManager window

**NETworkManager version**:
last one
**Windows version**:
10 - 21H2
**.NET-Framework version**:

**Screenshots**

Eventlog (if application crashes)

按照回報的步驟重現問題：將 NETworkManager 視窗放置在第三台螢幕上，關閉視窗，然後在僅連接兩台螢幕的情況下重新開啟。確認視窗大小和位置所需的重設行為，並驗證視窗重新開啟後會完整顯示在目前的螢幕上。

由索引模型根據 Issue 內容生成。