yoda: iced_core + iced_wgpu cleanup (3→0 warnings)

iced_core/settings.rs: drop dead `From<Settings> for iced_winit::Settings`
impl gated behind a `winit` feature that doesn't exist on iced_core (and
shouldn't — that would invert the dep direction). The impl was
unreachable code.

iced_wgpu/window/compositor.rs: collapse the unused initial
`adapter_options` declaration into the only branch that uses it (the
fallback path that re-creates the instance with GL allowed). The
original allocation was always re-assigned before being read.

iced_wgpu/lib.rs: remove `Renderer::draw_overlay` — private debug method
with no caller anywhere in the workspace. cargo fix then dropped the
imports that became orphans (Color, Size, Vector, alignment).

Leyoda 2026 – GPLv3

core/src/settings.rs

@@ -63,13 +63,3 @@ impl Default for Settings {
     }
 }
 
-#[cfg(feature = "winit")]
-impl From<Settings> for iced_winit::Settings {
-    fn from(settings: Settings) -> iced_winit::Settings {
-        iced_winit::Settings {
-            id: settings.id,
-            fonts: settings.fonts,
-            is_daemon: settings.is_daemon,
-        }
-    }
-}