remove: ugly indentation and simplify code

src/handlers/list_handler.rs

@@ -1,6 +1,6 @@
 use anyhow::{anyhow, Result};
 use regex::Regex;
-use std::fs;
+use std::{fs, path::PathBuf};
 use yansi::Paint;
 
 use crate::{
@@ -11,12 +11,10 @@ use crate::{
 pub async fn start(config: Config) -> Result<()> {
     let downloads_dir = directories::get_downloads_directory(&config).await?;
 
-    let mut paths = Vec::new();
-    for entry in fs::read_dir(downloads_dir)? {
-        if let Ok(v) = entry {
-            paths.push(v.path());
-        }
-    }
+    let paths: Vec<PathBuf> = fs::read_dir(downloads_dir)?
+        .filter_map(Result::ok)
+        .map(|entry| entry.path())
+        .collect();
 
     if paths.is_empty() {
         return Err(anyhow!("There are no versions installed"));