[Test Case][Governing bodies][Announcement] Verify that the user can delete the announcement

[ChrystynaKubai]

Description: The user (Супер адмін/Крайовий) can delete the announcement in the 'Оголошення' section on the governing bodies

Type: Functional
Priority: High

Preconditions
Go to https://eplast.westeurope.cloudapp.azure.com/
The announcements are on the "Оголошення" section

Test steps
1.Log into the system as a Admin(Супер адмін)
2.Click on 'Крайовий провід пласту' button.
3.Click on one item of governing bodies
4.Click on the "Більше" button in the 'Оголошення' section.
5.Click on '...' button on the right top corner of the announcement.
6. Select 'Видалити' option.
7. Repeat the same steps with user account (Крайовий).

Expected results:
Step 4. The 'Оголошення' page is opened.
Step 5. The context menu is opened.
Step 6. 1)An announcement is deleted from the system
2)A system displays a notification: "Оголошення видалено".

User Story #877