Enable search for public wiki's (Pro)#215

Current behavior:
Search is not available for public wikis

Expected behavior:
Search is available for public wikis

Possible developer solutions:

• If the user is an owner, ability to turn it on or off in settings
• Works automatically without having to update settings

Search is now enabled for all users.

Steps to reproduce

1. Open this link in incognito mode.
2. Try to search ‘Vera’ in the search bar.
3. No results appear.

Expected behavior

Search results should appear.

Current behavior
Search result does not appear.

Fixed. Content search is now available for all users.