Fix Styles type reference in tests

Change-Id: If0f3a38f9b7601fda3c275fe973f8e2601330bdf

web/test/test-setup.ts

diff --git a/web/test/test-setup.ts b/web/test/test-setup.ts
index ec876b5..007174d 100644
--- a/web/test/test-setup.ts
+++ b/web/test/test-setup.ts
@@ -22,7 +22,7 @@
   styles: {
     font: css``,
     form: css``,
-    icon: css``,
+    material: css``,
     menuPage: css``,
     spinner: css``,
     subPage: css``,