The Home settings screen copies settings into local @State on appear and
saves on disappear. Pushing the card style page fired onDisappear (saving
pre-edit values), and popping back re-ran loadSettings, clobbering the
style just edited through the bindings — so the selection reverted.
Load settings only once per presentation, and persist style, palette, and
custom colors immediately from the style page via an onSave callback. The
owning view sits covered in the navigation stack where its own onChange
never fires, and swipe-dismissing the settings sheet from the style page
skips its lifecycle entirely, so saving must happen from the visible child.
Colorful shortcut cards now color by grid position instead of shortcut
identity, so colors stay in the same slot when shortcuts are reordered.
Adds a Palette option (Classic default, plus Sunset, Meadow, Berry,
Grape) and a Custom palette with a swatch-list editor (ColorPicker + hex
fields) and a switchable comma-separated text field. Color is resolved
per position and wraps by palette length, wired via a new
homeShortcutColorfulColor environment value and a Color(hex:) extension.
Replace the inline Plain/Accent/Colorful picker in Home customization with
a navigation row that opens a dedicated page. The new page keeps the style
selector and renders a non-interactive preview of every shortcut type so
the chosen style is visible before committing.
- Add an optional styleOverride to HomeShortcutCardView so the preview can
reflect the not-yet-saved selection.
- On macOS, navigate via navigationDestination(isPresented:) instead of a
List-embedded NavigationLink, which otherwise stays stuck in its selected
state after popping back and can't be reopened.
