Remove the margin/padding in sides & redesign options buttons about search_choices HOT 7 CLOSED

      SearchChoices.single(
        items: items,
        value: selectedValueSingleDialog,
        hint: "Select one",
        searchHint: "Select one",
        onChanged: (value) {
          setState(() {
            selectedValueSingleDialog = value;
          });
        },
        isExpanded: true,
        displayItem: (item, selected) {
          return (
            Expanded(
              child: item,
            )
        );
        },
        buildDropDownDialog: (
          Widget titleBar,
          Widget searchBar,
          Widget list,
          Widget closeButton,
          BuildContext dropDownContext,
        ) {
          return (AnimatedContainer(
            padding: MediaQuery.of(dropDownContext).viewInsets,
            duration: const Duration(milliseconds: 100),
            child: Card(
              margin: EdgeInsets.symmetric(vertical: 0, horizontal: 0),
              child: Container(
                padding: EdgeInsets.symmetric(vertical: 0, horizontal: 0),
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.start,
                  crossAxisAlignment: CrossAxisAlignment.start,
                  mainAxisSize: MainAxisSize.min,
                  children: <Widget>[
                    titleBar,
                    searchBar,
                    list,
                    closeButton,
                  ],
                ),
              ),
            ),
          ));
        },
      )