change rustfmt configuration

This change is fully automated, except the `rustfmt.toml` changes and
a few clippy directives to allow specific functions with too many lines
because they are longer now.

src/service/uiaa/data.rs

@@ -1,6 +1,7 @@
-use crate::Result;
 use ruma::{api::client::uiaa::UiaaInfo, CanonicalJsonValue, DeviceId, UserId};
 
+use crate::Result;
+
 pub(crate) trait Data: Send + Sync {
     fn set_uiaa_request(
         &self,