Fix layout plugin source import violation

Summary: Fixed direct source import of Flipper code from layout plugin which broke its packaging

Reviewed By: cekkaewnumchai

Differential Revision: D22135716

fbshipit-source-id: 8f67a21ed94c13dd73d24ef8692d37ae51963319

desktop/plugins/layout/MultipleSelectionSection.tsx

@@ -11,6 +11,7 @@ import {
   FlexColumn,
   FlexBox,
   Element,
+  ElementsConstants,
   ElementID,
   ElementsInspector,
   Glyph,
@@ -18,10 +19,9 @@ import {
   styled,
 } from 'flipper';
 import React, {memo, useState} from 'react';
-import {ROW_HEIGHT} from '../../app/src/ui/components/elements-inspector/elements';
 
 const MultipleSelectorSectionContainer = styled(FlexColumn)({
-  maxHeight: 3 * ROW_HEIGHT + 24,
+  maxHeight: 3 * ElementsConstants.rowHeight + 24,
 });
 
 const MultipleSelectorSectionTitle = styled(FlexBox)({