Issue Description: After MGDOBR-668 we should implement a test for a SE instances pagination.

Acceptance Criteria: Verify SE instances list is updated once:

• other page is selected
• page size is changed

Out of Scope:

Additional Information:

• Active usage of pagination component is showed in the video pagination.webm . We should create a test simulating a behavior from the video. It is worth to asses including also SmartEvent instance creation / deletion to see pagination still works as expected.