fixes and cleanup

src/util/cache.rs

@@ -45,7 +45,7 @@ impl VideoCache {
             cache.remove(key);
         }
     }
-    
+
     pub fn entries(&self) -> Option<Vec<(String, (SystemTime, Vec<VideoItem>))>> {
         if let Ok(cache) = self.cache.lock() {
             // Return a cloned vector of the cache entries