fix(webapp): Vertically align checkboxes

frontend/src/metabase/core/components/CheckBox/CheckBox.styled.tsx

@@ -15,6 +15,7 @@ import type {
 export const CheckBoxRoot = styled.label`
   display: block;
   position: relative;
+  line-height: 0;
 `;
 
 export const CheckBoxInput = styled.input<CheckBoxInputProps>`

frontend/src/metabase/core/components/Swapper/Swapper.styled.tsx

@@ -5,6 +5,7 @@ export interface SwapperElementProps {
 }
 
 export const SwapperRoot = styled.div`
+  line-height: 0;
   position: relative;
 `;