[simple_browser] Fix broken closing icon

Bug: 59363

Change-Id: I9379af9fe49ed156ab7aa0019373034b4fd2195b
Reviewed-on: https://fuchsia-review.googlesource.com/c/experiences/+/440995
Commit-Queue: Yeonhee Lee <yhlee@google.com>
Reviewed-by: Sanjay Chouksey <sanjayc@google.com>
Reviewed-by: Charles Whitten <cwhitten@google.com>
Testability-Review: Sanjay Chouksey <sanjayc@google.com>
diff --git a/bin/simple_browser/fonts/MaterialIcons-Regular.otf b/bin/simple_browser/fonts/MaterialIcons-Regular.otf
new file mode 100644
index 0000000..520db95
--- /dev/null
+++ b/bin/simple_browser/fonts/MaterialIcons-Regular.otf
Binary files differ
diff --git a/bin/simple_browser/pubspec.yaml b/bin/simple_browser/pubspec.yaml
index e4eaad8..3d78ae3 100644
--- a/bin/simple_browser/pubspec.yaml
+++ b/bin/simple_browser/pubspec.yaml
@@ -6,3 +6,8 @@
 description: A simple browser for Fuchsia
 
 flutter:
+  fonts:
+    - family: MaterialIcons
+      fonts:
+        - asset: fonts/MaterialIcons-Regular.otf 
+  uses-material-design: true