Active Scene Tree support multiple instance

### Godot version

4.4.1

### VS Code version

1.102.3

### Godot Tools VS Code extension version

2.5.1

### System information

Windows 11

### Problem statement

VSCode launch config

``` json
{
"version": "0.2.0",
"configurations": [
{
"name": "GDScript: Launch Server",
"type": "godot",
"request": "launch",
"project": "${workspaceFolder}",
"additional_options": "--client-id=1 --position 3300,110 --multiplayer-server",
},
{
"name": "GDScript: Launch Client #1",
"type": "godot",
"request": "launch",
"project": "${workspaceFolder}",
"additional_options": "--client-id=2 --position 3300,1120"
}
],
"compounds": [
{
"name": "GDScript: Launch Server and 1 Client",
"configurations": [
"GDScript: Launch Server",
"GDScript: Launch Client #1",
],
"stopAll": true
}
]
}
```

Panel

Feature request

Show Active Scene Tree for different instances

### Proposed solution

1. auto change content in Active Scene Tree when click process in Call Stack panel
2. add a process selector in Active Scene Tree title bar