Fix clippy issues.

src/command/build/runner.rs

@@ -62,7 +62,7 @@ async fn get_post_directories(config: &Config) -> Result<Vec<PathBuf>, CustomErr
 
 async fn load_blog_posts(config: &Config) -> Result<Vec<BlogPost>, CustomError> {
     let root_directory = config.get_root_directory().to_owned();
-    let post_directories = get_post_directories(&config).await?;
+    let post_directories = get_post_directories(config).await?;
     let load_jobs = post_directories
         .into_iter()
         .map(|path| tokio::spawn(BlogPost::load_blog_post(root_directory.clone(), path)));

src/command/init/runner.rs

@@ -13,7 +13,7 @@ pub(crate) async fn init_natter_folder(args: InitArgs) -> Result<(), CustomError
 
     let mut existing_entries = tokio::fs::read_dir(&args.path).await?;
     let first_entry = existing_entries.next_entry().await?;
-    if let Some(_) = first_entry {
+    if first_entry.is_some() {
         return Err("The directory is not empty. Aborting.".into());
     }