Highlight socket, when the wire is highlighted

### Is there an existing issue for this?

- [x] I have searched the existing issues and checked the recent builds/commits

### What problem are you experiencing?

In complex workflows it's hard to check connections, despite wire highlighting. 

### When does this problem occur?

When nodes are very close, the wire is mostly hidden, so wire highlighting it's not very effective.

### How often do you encounter this problem?

Multiple times per day

### How much does this problem affect your workflow?

Significantly slows down my work

### Current workarounds

Moving nodes, to view more of the wire. Then, moving them back again, to the right places.

But this is very annoying, when we need to do it multiple times, in complex workflows. 

### Ideas for solutions (Optional)

When a wire it's highlighted, the corresponding input socket should also be highlighted.

**Example:**

Here I'm clicking on image input nodes, to make sure they are properly wired.
But the wire it's barely visible.
I'd like for the input socket for "image 4" to also be white, like the wire.


### Additional context

_No response_

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-5712-Highlight-socket-when-the-wire-is-highlighted-2756d73d36508191b558ff49a9d91b4e) by [Unito](https://www.unito.io)