apply new rustfmt.toml changes, fix some clippy lints

Signed-off-by: strawberry <strawberry@puppygock.gay>

src/core/utils/mod.rs

@@ -47,8 +47,8 @@ pub fn exchange<T>(state: &mut T, source: T) -> T { std::mem::replace(state, sou
 macro_rules! extract_variant {
 	($e:expr, $variant:path) => {
 		match $e {
-			$variant(value) => Some(value),
-			_ => None,
+			| $variant(value) => Some(value),
+			| _ => None,
 		}
 	};
 }