As a platform admin when I navigate to an Observer details page it should contain another tab that will display a table with monitored elections by that Observer.
See src\features\observers\components\ObserverDetails\ObserverDetails.tsx

• Add two tabs called Observer details, Monitored elections
• In Observer details display observer details
• In Monitored elections display a table with following columns: Title, English Title, Start Date , Status
• when clicking on a row from this table navigate to that election round in a new tab (navigate to /election-rounds/$electionRoundId/$tab)