fix: cleaning up a few clippy warnings

src/handlers/list_files.rs

@@ -44,13 +44,12 @@ pub async fn list_files(req: &mut Request, res: &mut Response) {
                 let human_time = convert_unix_timestamp(f.expiry);
 
                 // If isDeleted, change colour to red, else green
-                let mut colour: String = String::new();
-                if f.is_deleted {
-                    colour = "background-color: #ff00000a;".to_string()
+                let colour = if f.is_deleted {
+                    "background-color: #ff00000a;".to_string()
                 } else {
-                    colour = "background-color: #00ff100a;".to_string()
-                }
-
+                    "background-color: #00ff100a;".to_string()
+                };
+                
                 // Add a new file to the rendered string
                 html.push_str(&format!("<tr style='{}'><td><a href={}>{}</a></td><td data-sort='{}'>{}</td><td>{}</td><td>{}</td><td data-sort='{}'>{}</td></tr>",
                     colour,

src/handlers/mod.rs

@@ -195,9 +195,7 @@ fn convert_unix_timestamp(unix_timestamp: i64) -> String {
         Utc,
     );
 
-    let relative_date = datetime.humanize();
-
-    relative_date.to_string()
+    datetime.humanize()
 }
 
 /// Calculate the number of files in the FileMetric result

src/main.rs

@@ -80,10 +80,10 @@ async fn main() {
     let db_url = &CONFIG.database.url;
 
     // Match on the database type
-    match DatabaseType::from_str(&sql_backend) {
+    match DatabaseType::from_str(sql_backend) {
         Some(DatabaseType::Sqlite) => {
             tracing::info!("Using SQLite backend");
-            let pool = SqlitePool::connect(&db_url).await.unwrap();
+            let pool = SqlitePool::connect(db_url).await.unwrap();
             SQLITE.set(pool).unwrap();
         }
         Some(DatabaseType::Postgres) => {