Refactor engine for strict Clippy checks

crates/engine/src/settings/prefs/dialog.rs

@@ -1,5 +1,5 @@
 use super::choices::{APPEARANCE_MODES, DARK_THEMES, LANGUAGES, LIGHT_THEMES, WINDOW_GRAPHICS};
-use super::*;
+use super::{Value, json};
 
 // ---------------------------------------------------------------- schema (Settings dialog)
 

crates/engine/src/settings/prefs/document.rs

@@ -1,7 +1,7 @@
 use super::choices::{APPEARANCE_MODES, DARK_THEMES, LANGUAGES, LIGHT_THEMES, THEMES, WINDOW_GRAPHICS, choices, is_choice, theme_family};
 use super::recent::MAX_EFFECTS_FAVORITES;
 use super::sections::{CompPreset, default_labels, parse_hex};
-use super::*;
+use super::{Appearance, General, Map, PREFS_VERSION, Prefs, Startup, Value, json};
 
 /// Bring an older settings document up to [`PREFS_VERSION`].
 ///

crates/engine/src/settings/prefs/queries.rs

@@ -1,5 +1,5 @@
 use super::sections::parse_hex;
-use super::*;
+use super::{Label, Prefs, Serialize, Tick};
 
 impl Prefs {
     /// Display name of a label (Labels settings).

crates/engine/src/settings/prefs/recent.rs

@@ -1,4 +1,4 @@
-use super::*;
+use super::Prefs;
 
 impl Prefs {
     /// Remember a project in File ▸ Open Recent.

crates/engine/src/settings/prefs/sections.rs

@@ -1,5 +1,5 @@
 use super::choices::theme_family;
-use super::*;
+use super::{BTreeMap, Deserialize, Label, Serialize, Value};
 
 /// Unknown keys inside a page, kept so a newer version's settings survive a round trip.
 pub(super) type Extra = BTreeMap<String, Value>;