fix: minor widget fixes

Author: iobuhov

packages/pluggableWidgets/datagrid-web/src/Datagrid.editorConfig.ts

@@ -137,7 +137,8 @@ function hideSelectionProperties(defaultProperties: Properties, values: Datagrid
         hidePropertiesIn(defaultProperties, values, [
             "keepSelection",
             "selectionCounterPosition",
-            "clearSelectionButtonLabel"
+            "clearSelectionButtonLabel",
+            "enableSelectAll"
         ]);
     }
 }

packages/pluggableWidgets/gallery-web/src/components/Gallery.tsx

@@ -80,7 +80,7 @@ export function Gallery<T extends ObjectItem>(props: GalleryProps<T>): ReactElem
         props.paging && (props.paginationPosition === "bottom" || props.paginationPosition === "both");
 
     const selectionCounter =
-        !props.preview && props.selectionCountPosition !== "off" ? (
+        !props.preview && props.selectionCountPosition !== "off" && props.selectHelper.selectionType === "Multi" ? (
             <SelectionCounter location={props.selectionCountPosition} />
         ) : null;