refactor(clippy): apply various lint fixes

komorebi/src/main.rs

@@ -509,16 +509,17 @@ fn main() -> Result<()> {
 
     Hidden::create("komorebi-hidden")?;
 
-    let static_config = if let Some(config) = opts.config {
-        Option::from(config)
-    } else {
+    let static_config = opts.config.map_or_else(
+        || {
             let komorebi_json = HOME_DIR.join("komorebi.json");
             if komorebi_json.is_file() {
                 Option::from(komorebi_json)
             } else {
                 None
             }
-    };
+        },
+        Option::from,
+    );
 
     let wm = if let Some(config) = &static_config {
         tracing::info!(

komorebi/src/windows_api.rs

@@ -700,7 +700,7 @@ impl WindowsApi {
             Self::system_parameters_info_w(
                 SPI_SETFOREGROUNDLOCKTIMEOUT,
                 0,
-                0 as *mut c_void,
+                std::ptr::null_mut::<c_void>(),
                 SPIF_SENDCHANGE,
             )?;