[TC][Admin][News] Check the possibility of creating news exceeding the character limit in the "Link" field

[olena13s]

Priority: Medium

Preconditions

1. The user is logged in as admin.
2. The “Новини” page is opened via the admin panel.
3. The "Зберегти" button stays disable untill all mandatory fields will not be filled with data.

Steps to reproduce

1. Click the “Додати новину” button in the News section.
2. Fill the "Link" field with 201 characters and all mandatory fields according to requirements.
3. Click the "Зберегти" button.

Expected result

1. Characters that exceed the limit are not added to the "Link" field.
2. When added more than 200 characters, the field highlights in red, and displays an error message under the field: "Не більше 200 символів"

User story: #835