Option to prevent connecting to Godot editor

### Godot version

3.5-stable

### VS Code version

1.72.2

### Godot Tools VS Code extension version

1.3.1

### System information

Window 10

### Problem statement

This notices popups up if you aren't running Godot:

> Couldn't connect to the GDScript language server at 127.0.0.1:6008. Is the Godot editor running?

I only want to use the syntax highlighting feature of this extension, so is there a way to prevent it from trying to connect to the editor every time?

I'm aware of #356 but the fix was to run Godot, which isn't a viable fix for this situation

### Proposed solution

Add an option to prevent trying to connect to the editor