Fix monorail component name for safe_search_api

The correct component name is FamilyExperiences.

Bug: 1165368
Change-Id: Ie206eb950cae0243baa5a655d8c12dff506a4066
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2625369
Commit-Queue: Marc Treib <treib@chromium.org>
Auto-Submit: Aga Wronska <agawronska@chromium.org>
Reviewed-by: Marc Treib <treib@chromium.org>
Cr-Commit-Position: refs/heads/master@{#842922}

components/safe_search_api/DIR_METADATA

 monorail {
-  component: "FamilyLink"
+  component: "FamilyExperiences"
 }