Unify segmented controls on a shared module with grey selection

src/app/components/SpecEditor.tsx

@@ -81,9 +81,6 @@ function EditorToolbar() {
         options={VIEW_OPTIONS}
         value={editorView}
         onChange={setEditorView}
-        className={styles.viewToggle}
-        optionClassName={styles.viewOption}
-        activeClassName={styles.viewActive}
       />
 
       <span className={styles.spacer} />