chore: Fix remaining clippy lints

src/shell/element/mod.rs

@@ -812,7 +812,7 @@ impl CosmicMapped {
                 scale.x,
                 0.8,
             ) {
-                Ok(element) => vec![CosmicMappedRenderElement::from(element).into()],
+                Ok(element) => vec![CosmicMappedRenderElement::from(element)],
                 Err(err) => {
                     debug!(?err, "Error rendering debug overlay.");
                     Vec::new()

src/shell/element/window.rs

@@ -154,6 +154,8 @@ impl Focus {
         }
     }
 
+    /// # Safety
+    /// `value` must be in the range of `Focus`
     pub unsafe fn from_u8(value: u8) -> Option<Focus> {
         match value {
             0 => None,