feat(upsteam): Highlight running upstream

[qiuwshou]

Feature request

Please describe your feature

The frontend should higlight the running upstreams. So it will have less confusion to modify or delete them. In the test case the default stream is the one being used by the route.

Describe the solution you'd like

Describe alternatives you've considered

Additional context

[guoqqqi]

Hello, @bzp2010 Are there any of our existing fields that could be used to support this functionality?

[Silence-dream]

I don't find any fields to indicate whether the current upstream is used by route Whether to add a column to indicate whether the current upstream is in use, as shown in the following figure

You can view upsteam in route. You can't check which route uses upsteam in upsteam.