PillButton's attached ToolTip is now a styled instance — uses the
widget's foreground color for text + border and a configurable
tooltipBackground (defaults to a near-black, overridable to
bar.background). No more stock OS chrome inside our popups.
Bluetooth panel passes bar.background/foreground through to its
header pills and replaces the row tooltip with the same themed style.
- Scan and Manage are now small icon-only buttons in the header beside
the On/Off pill, with hover tooltips via the new PillButton.tooltipText
prop (backed by QtQuick.Controls ToolTip).
- New discoveredDevices list pulls everything in Bluetooth.devices that
isn't paired/connected/bonded/trusted. While scanning, those appear
under a 'Discovered' header. Click pairs and connects.
- Empty-state text only shows when there are no known and no
discovered devices, otherwise it would push down real entries.
Ryan Hughes