bug: add missing setting check for workspace_status_json on route

[asullivan-blze]

What and why?

The route for /api/workspaces/status was found to be missing the corresponding check within the route to only display information if the boardwalkd option was set.

How was this tested?

Alternating between the version of serving the app with and without --workspace-status-json:

(boardwalk-py3.12) asullivan@MBP-NT9RPG2XV7 boardwalk % poetry run boardwalkd serve \
                --develop \
                                --host-header-pattern="(localhost|127\.0\.0\.1)" \
                --port=8888 \
                --url='http://localhost:8888'
404 GET /api/workspaces/status (127.0.0.1) 1.61ms
^C
Aborted!
(boardwalk-py3.12) asullivan@MBP-NT9RPG2XV7 boardwalk % make develop-server 
poetry install
Installing dependencies from lock file

No dependencies to install or update

Installing the current project: boardwalk (0.8.28)
poetry run boardwalkd serve \
		--develop \
		--workspace-status-json \
		--host-header-pattern="(localhost|127\.0\.0\.1)" \
		--port=8888 \
		--url='http://localhost:8888'
404 GET /favicon.ico (127.0.0.1) 3.84ms
^C
Aborted!
make: *** [develop-server] Error 1

Checklist

• Have you updated the version in the [project] section of
  the pyproject.toml file (if applicable)?

[agouldingbb]

LGTM