2.5. As a talent, I want to be able to publish my proofs

[asya982]

Acceptance criteria

5.1 Possibility to publish right after editing
5.2 Possibility to choose Proof's status :

• Published
• Hidden

5.3 Pop-up with message that the talent confirms the publishing
5.4 Date assigned to publication right after publicating
5.5 Proof can not be change to Draft status after published or hidden statuses.

Tasks

Front-end

• 2.5.1 Add ability to change proof status frontend#79

Back-end

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