Trigger click instead of actual click to make sure the right button is always hit

What does this MR do?

EE port: https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/1835

Another attempt to fix https://gitlab.com/gitlab-org/gitlab-ce/issues/30504

Fix based off this theory: https://gitlab.com/gitlab-org/gitlab-ce/issues/30504#note_28929794

Are there points in the code the reviewer needs to double check?

Why was this MR needed?

Screenshots (if relevant)

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• API support added
• Tests
  • Added for this feature/bug
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

mentioned in issue #30504 (closed)

assigned to @smcgivern

assigned to @stanhu

approved this merge request

merged

mentioned in commit 62f856a3

Here is another spot I had to use trigger('click') with, https://gitlab.slack.com/archives/C0GQHHPGW/p1491000934215972

Thanks for fixing @MadLittleMods ♥️ There are probably a few of these lying around waiting to pounce. 😝