Server status available for competition organizers and queue collaborators

[Didayolo]

Description

Now, for normal users, the server status list:

• this user's own submissions
• submissions running on competitions where the user is owner or organizer
• submissions running on queue where the user is owner or collaborator

Issues this PR resolves

• Closes The server status is only visible to the queue creator; it's not visible to other administrators. #2045

A checklist for hand testing

• Make submissions on default queue and on custom queue by the competition owner and by a separate user (participant)
• Check the server status for both users - the participant should only be able to see their own submissions
• Make the participant collaborator of the custom queue. All submissions on that queue should appear
• Make the participant co-organizer of the challenge. All submissions on the challenge (on all queues) should appear

Checklist

• Code review by me
• Hand tested by me
• I'm proud of my work
• Code review by reviewer
• Hand tested by reviewer
• CircleCi tests are passing
• Ready to merge