Fix all default clippy warnings (#480)

All trivial, fixes were for:
 - #[deny(clippy::if_same_then_else)]
 - #[warn(clippy::explicit_auto_deref)]
 - #[warn(clippy::bool_assert_comparison)]

Co-authored-by: Geometrically <18202329+Geometrically@users.noreply.github.com>

src/models/users.rs

@@ -137,7 +137,7 @@ impl From<DBUser> for User {
             avatar_url: data.avatar_url,
             bio: data.bio,
             created: data.created,
-            role: Role::from_string(&*data.role),
+            role: Role::from_string(&data.role),
             badges: data.badges,
             payout_data: None,
         }