LSPRange contains method is not inclusive at the start

There should be probably a `>=` relation between `position` and `start`. According to the specification, LSP range is start inclusive, end exclusive: https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#range
```swift
	public func contains(_ position: Position) -> Bool {
		return position > start && position < end
	}
```