ER: Simplify Command Palette / Dock / Network Send-Receive

### Description of the new feature / enhancement

In the current release the Network Send / Received is splitted into two side-by-side elements (Receive | Send). They consume quite a significant amount of space and the UI/UX is not optional with current layout.

Instead have just one "Antenna" icon and beside that the Send / Received data speeds as follows on top-of each other as follows:

↑ x.x Kbps

That would be more intuitive and also space some valuable space from the Dock.

See image below from [TrafficMonitor](https://github.com/zhongyang219/TrafficMonitor)

### Scenario when this would be used?

Always :)

### Supporting information

_No response_

Start by locating the PowerToys Dock and Network Send/Receive UI entry points; no specific files or tests are named in the issue. Compare the current side-by-side Receive | Send layout with the proposed antenna and stacked-speed design, and consider the feature complete when the Dock presents the network indicators in that compact arrangement.

Written by the indexing model from the issue text.