[DOC] - Compat. REST API: List Accounts | Misnamed Array in Schema

[nahrendtSW]

Describe the requested update
Update the Compat. REST API's List Accounts schema and example response to reflect the true name of the of the returned data array.

Reason for the request
The current schema and response example both name the returned data array as applications when it is in fact accounts.

Sections to be updated
https://developer.signalwire.com/rest/compatibility-api/endpoints/list-accounts
"Schema" and "Example (auto)"