style(playlist-error-view): update empty category image styling for better responsiveness

src/app/xtream-tauri/playlist-error-view/playlist-error-view.component.html

@@ -3,7 +3,7 @@
         <img src="./assets/images/broken-tv.svg" />
     } @else if (viewType === 'EMPTY_CATEGORY') {
         <img
-            style="max-width: 350px"
+            class="empty-category-img"
             src="./assets/images/empty-category.svg"
         />
     } @else if (viewType === 'NO_SEARCH_RESULTS') {

src/app/xtream-tauri/playlist-error-view/playlist-error-view.component.scss

@@ -17,6 +17,10 @@
     width: 64px;
 }
 
+.empty-category-img {
+    max-width: 300px
+}
+
 ::ng-deep {
     .dark-theme {
         .expired-account {