Search bucketing, refresh policy, folder data, history snapshot and the
selection and collapsing-header mixins hold no widgets, so they move to
controllers; the settings search catalog is pure presentation metadata and
moves to utils. Files with many importers keep a re-export in screens.
The Material theme now draws its main surfaces with rounded Material
Symbols: navigation, player, mini player, queue, settings, sheets,
dialogs and shared controls. AppIcon maps legacy Icons to their symbol
and keeps outlined glyphs unfilled. Mornye keeps its original icons.
Icon buttons, text and filled buttons, dialog actions, sliders, the setup
FAB and indeterminate spinners use the Material 3 Expressive components.
Each wrapper falls back to the standard Flutter widget for Mornye, reduced
motion and custom sizing, so existing layouts and hit areas stay intact.
zarzet