fixes visual regression

Author: mperrotti

src/SegmentedControl/SegmentedControl.tsx

@@ -33,6 +33,7 @@ const getSegmentedControlStyles = (isFullWidth?: boolean) => ({
   borderStyle: 'solid',
   borderWidth: 1,
   display: isFullWidth ? 'flex' : 'inline-flex',
+  height: '32px', // TODO: use primitive `control.medium.size` when it is available
   margin: 0,
   padding: 0,
   width: isFullWidth ? '100%' : undefined

src/SegmentedControl/__snapshots__/SegmentedControl.test.tsx.snap

@@ -286,6 +286,7 @@ exports[`SegmentedControl renders consistently 1`] = `
   display: -webkit-inline-flex;
   display: -ms-inline-flexbox;
   display: inline-flex;
+  height: 32px;
   margin: 0;
   padding: 0;
 }