fix(ui): 打磨推荐追剧我的设置页间距与图标

lib/core/widgets/remote_image.dart

@@ -74,9 +74,13 @@ class RemoteImage extends StatelessWidget {
                       : null);
         final cacheWidth =
             decodeWidth ?? resolveImageDecodePixels(layoutWidth, pixelRatio);
-        final cacheHeight =
-            decodeHeight ??
-            (inferredHeight == null
+        // cover/contain 本身会保持宽高比，此时若同时强制 cacheWidth 和
+        // cacheHeight，解码会把竖版图强行拉成横版像素。只在显式指定了
+        // decodeHeight、或 fit 不保持宽高比时才限定解码高度。
+        final keepsAspectRatio =
+            fit == BoxFit.cover || fit == BoxFit.contain;
+        final cacheHeight = decodeHeight ??
+            (keepsAspectRatio || inferredHeight == null
                 ? null
                 : resolveImageDecodePixels(inferredHeight, pixelRatio));
         return Image.network(