Fix: Default icons on the local audio list page are not displayed com…

…pletely.

Change the size value of the default icon from the original fixed value of 70 to 70% of the height to resolve the issue of incomplete display of the default icon.

lib/common/view/safe_network_image.dart

@@ -39,7 +39,7 @@ class SafeNetworkImage extends StatelessWidget {
       child: fallBackIcon ??
           Icon(
             Iconz().musicNote,
-            size: 70,
+            size: height!.toDouble() * 0.7,
           ),
     );
 
@@ -49,7 +49,7 @@ class SafeNetworkImage extends StatelessWidget {
       child: errorIcon ??
           Icon(
             Iconz().imageMissing,
-            size: 70,
+            size: height!.toDouble() * 0.7,
             color: context.t.hintColor,
           ),
     );