fix double annotation save

src/components/AnnotationMain/AnnotationMain.js

@@ -75,17 +75,15 @@ function AnnotationMain() {
         );
 
         if (imageData) {
-            setAnnotations(prevAnnotations => {
             const newAnnotations = {
-                    ...prevAnnotations,
+                ...annotations,
                 [currentTime]: { time: currentTime, annotations: detections, imageData }
             };
         
+            setAnnotations(newAnnotations);
+        
             saveAnnotation(currentTime, detections, imageData);
             setErrorMessage("");
-
-                return newAnnotations;
-            });
         }
     };
 
@@ -132,7 +130,7 @@ function AnnotationMain() {
     };
 
     const handleStop = () => {
-        setIsPlaying(prev => !prev);
+        setIsPlaying(false);
         setCurrentTime(0);
     };