Fix click access token to adapt to superside bar

What does this MR do and why?

Fix the access token page navigation failed when the Superside bar is enabled in JH e2e.

In JH e2e test, we use the click access token method to navigate to access token page, but when the Superside bar is enabled, we need to use upstream method in superside bar module to navigate to the `access token page.

so I use super method when the Superside bar is enabled:

          def click_access_tokens
            return super if QA::Runtime::Env.super_sidebar_enabled?

            within_sidebar do
              has_text?('访问令牌') ? click_link('访问令牌') : click_link('Access Tokens')
            end
          end

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/cc @prajnamas