Fix clippy warnings in settings.rs

src/main.rs

@@ -16,7 +16,7 @@ fn main() -> Result<()> {
     let config = config::Config::load().ok();
 
     // Resolve wallpaper settings
-    let wallpaper_settings = settings::resolve_wallpaper(&args, config)?;
+    let wallpaper_settings = settings::resolve_wallpaper(&args, config.as_ref())?;
 
     // Connect to X11
     let session = x11::X11Session::connect()?;

src/settings.rs

@@ -10,14 +10,14 @@ pub struct WallpaperSettings {
 
 pub fn resolve_wallpaper(
     args: &args::Args,
-    config: Option<config::Config>,
+    config: Option<&config::Config>,
 ) -> Result<WallpaperSettings> {
     // Borrow the config once as `Option<&Config>`.
     //
     // Avoids moving `config`, allows to:
     // - read values multiple times
     // - decide later whether we need to write a new config
-    let cfg = config.as_ref();
+    let cfg = config;
 
     // Resolve wallpaper image path by precedence:
     // 1. args (`--set`, `--update`): Use path from args.