code: Fix clippy warnings

src/i18n.rs

@@ -31,7 +31,7 @@ fn freplace(input: String, args: &[&str]) -> String {
     let mut parts = input.split("{}");
     let mut output = parts.next().unwrap_or_default().to_string();
     for (p, a) in parts.zip(args.iter()) {
-        output += &(a.to_string() + &p.to_string());
+        output += &(a.to_string() + p);
     }
     output
 }

src/util.rs

@@ -41,7 +41,7 @@ pub async fn query_attributes_future(
     file: &gio::File,
     attributes: Vec<&str>,
 ) -> anyhow::Result<gio::FileInfo> {
-    let mut attr_str = String::from(*attributes.get(0).context("No attributes")?);
+    let mut attr_str = String::from(*attributes.first().context("No attributes")?);
 
     for attr in &attributes[1..] {
         write!(attr_str, ",{}", attr)?;