Why is this change required?
Previously, the tests in `viewing_sidebar_as_anonymous_user_spec.rb` was
flaky because the ordering of the tags changes depending on what the
auto generated tag names are. If a tag name is generated with the name
`tag10`, it would then be sorted before `tag9` which messes up the
ordering specified in our tests. This commit fixes the problem by
specifying the tag names instead of relying on the auto generated ones
by fabricator.