Fix in searchRepos query

[mecm1993]

The repo data is not updated due to validation after calling searchRepos query,

    response.search.nodes = response.search.nodes.filter((node) => {
      return node.__typename === 'Repository' && !node.isPrivate
    })

Today, the query result doesn't return the property __typename, therefore the return value of the filter is always false. I modified the query to be able to return the __typename.