Executable Toolbar: Use updated payload to establish Session connection

[alex-ketch]

A PR to the Hub adds a new field, urls, to support multiple types of session connections.
While the url field is not deprecated, we should migrate the component to use the urls object for future-proofing.

Relevant code is here:

designa/packages/components/src/components/executableDocumentToolbar/executableDocumentToolbar.tsx

Lines 194 to 196 in 11abcd9

	.res((res) => {
	this.jobUrl = res.url
	})