apply new rustfmt.toml changes, fix some clippy lints

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

src/api/client/unversioned.rs

@@ -74,7 +74,9 @@ pub(crate) async fn conduwuit_server_version() -> Result<impl IntoResponse> {
 /// conduwuit-specific API to return the amount of users registered on this
 /// homeserver. Endpoint is disabled if federation is disabled for privacy. This
 /// only includes active users (not deactivated, no guests, etc)
-pub(crate) async fn conduwuit_local_user_count(State(services): State<crate::State>) -> Result<impl IntoResponse> {
+pub(crate) async fn conduwuit_local_user_count(
+	State(services): State<crate::State>,
+) -> Result<impl IntoResponse> {
 	let user_count = services.users.list_local_users().count().await;
 
 	Ok(Json(serde_json::json!({