Improve collaboration between co-organizers

[Didayolo]

I am not sure if this point was raised in an issue already. We need to improve the tools for collaboring between organizers of a competition. Generally the interface is clumsy and the access permissions are not making it easy.

Current problems

1. Accessing task

• Accessing the tasks linked to a competition in the Resources menu is not easy, not clear.

You typically need to identify the name of the task and the number of the competition (in the URL), open the Resources menu, check for the tasks with the same name that are marked as "in use", and finally click on it to check if they are linked to the competition in question.

2. Task edition

• Being able to edit the tasks as a co-organizer

Importantly, you may not have access to the task (and to edit it) if you are not the owner, but just a co-organizer.

Also related:

• Edit Task and Task Validation #1078

3. Sharing server status information

This problem was solved by #2158

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

4. Adding collaborators (minor)

• Issues with adding more organizers #1807

5. Select task no convenient

Not directly related to collaboration, but the editor's interface is not convenient when selecting task(s) in "Edit Phase".

• Display the description of the task in the dropdown menu to help distinguish