pub fn default_position(
_window_width_unused: i32,
window_height: i32,
monitor: MonitorBounds,
inset_px: i32,
) -> BubblePositionExpand description
Default first-open position: bottom-LEFT of the supplied monitor,
inset by inset_px from both edges so the bubble doesn’t kiss the
dock / taskbar. Matches the Screenplay-style design reference where
the webcam bubble lives in the bottom-left corner of the screen by
default (the user can drag it anywhere; the new position is
persisted via bubble-position.txt).