style: white toolbar for SQL Lab (#10851)

superset-frontend/src/SqlLab/components/SqlEditor.jsx

@@ -534,6 +534,7 @@ class SqlEditor extends React.PureComponent {
         <div className="rightItems">
           <Button
             className="autocomplete"
+            buttonSize="small"
             onClick={this.handleToggleAutocompleteEnabled}
           >
             <Checkbox checked={this.state.autocompleteEnabled} />{' '}

superset-frontend/src/SqlLab/components/TemplateParamsEditor.jsx

@@ -123,7 +123,7 @@ export default class TemplateParamsEditor extends React.Component {
       <ModalTrigger
         modalTitle={t('Template Parameters')}
         triggerNode={
-          <Button tooltip={t('Edit template parameters')}>
+          <Button tooltip={t('Edit template parameters')} buttonSize="small">
             {`${t('parameters')} `}
             {paramCount > 0 && <Badge>{paramCount}</Badge>}
             {!this.state.isValid && (