Add buttons to open right drawer

app/src/main/java/com/hippo/ehviewer/ui/scene/DownloadsScene.java

@@ -552,6 +552,10 @@ public class DownloadsScene extends ToolbarScene
                 }
                 return true;
             }
+            case R.id.action_open_download_labels: {
+                openDrawer(Gravity.RIGHT);
+                return true;
+            }
             case R.id.action_reset_reading_progress: {
                 new MaterialAlertDialogBuilder(getContext())
                         .setMessage(R.string.reset_reading_progress_message)

app/src/main/java/com/hippo/ehviewer/ui/scene/FavoritesScene.java

@@ -755,12 +755,15 @@ public class FavoritesScene extends BaseScene implements
 
         if (!mRecyclerView.isInCustomChoice()) {
             switch (position) {
-                case 0: // Go to
+                case 0: // Open right
+                    openDrawer(Gravity.RIGHT);
+                    break;
+                case 1: // Go to
                     if (mHelper.canGoTo()) {
                         showGoToDialog();
                     }
                     break;
-                case 1: // Refresh
+                case 2: // Refresh
                     mHelper.refresh();
                     break;
             }

app/src/main/java/com/hippo/ehviewer/ui/scene/GalleryListScene.java

@@ -937,12 +937,15 @@ public final class GalleryListScene extends BaseScene
         }
 
         switch (position) {
-            case 0: // Go to
+            case 0: // Open right
+                openDrawer(Gravity.RIGHT);
+                break;
+            case 1: // Go to
                 if (mHelper.canGoTo()) {
                     showGoToDialog();
                 }
                 break;
-            case 1: // Refresh
+            case 2: // Refresh
                 mHelper.refresh();
                 break;
         }