Framecheck Chrome Connector 0.3.0

For the existing unpacked connector: reload it in Chrome Extensions after updating its source folder.
For a new installation: unzip this folder, open Chrome Extensions, enable Developer mode, choose Load unpacked, and select this folder.
Open Framecheck in Chrome, click the connector icon, and choose Enable screenshots for this tab. Return to Framecheck and click Enable screenshots.

Screenshot mode uses Chrome activeTab, captures only the enabled Framecheck tab, and does not request screen or desktop sharing. Legacy responsive preview mode retains its existing debugger permission.
