Chore: Apply clippy map transformations

Convert `.map().unwrap_or()` to `.map_or()` and similar transformations.

wgpu/src/image/vector.rs

@@ -56,7 +56,7 @@ impl Cache {
                         .ok()
                 });
 
-                tree.map(Svg::Loaded).unwrap_or(Svg::NotFound)
+                tree.map_or(Svg::NotFound, Svg::Loaded)
             }
             svg::Data::Bytes(bytes) => {
                 match usvg::Tree::from_data(bytes, &usvg::Options::default()) {

wgpu/src/triangle.rs

@@ -349,7 +349,7 @@ fn multisample_state(
     antialiasing: Option<Antialiasing>,
 ) -> wgpu::MultisampleState {
     wgpu::MultisampleState {
-        count: antialiasing.map(|a| a.sample_count()).unwrap_or(1),
+        count: antialiasing.map_or(1, Antialiasing::sample_count),
         mask: !0,
         alpha_to_coverage_enabled: false,
     }