Clippy code cleanup

src/data_provider/settings.rs

@@ -4,14 +4,13 @@ pub fn get_setting(key: String, connection: &Connection) -> Option<String> {
     let mut stmt = connection
         .prepare("SELECT value FROM settings WHERE id = ?1")
         .unwrap();
-    let iter = stmt.query_map((key,), |row| row.get(0)).unwrap();
+    let mut iter = stmt.query_map((key,), |row| row.get(0)).unwrap();
 
-    for row in iter {
-        if let Ok(value) = row {
-            return Some(value);
-        }
-        return None;
+    if let Some(row) = iter.next() && let Ok(value) = row
+    {
+        return Some(value);
     }
+
     None
 }