Use automatic load-more-on-end-of-list instead of load-more button

### Description

In the portal backend most API endpoints that return a list of items implement a paging concept loading only a fixed number of items at a time to avoid heavy server load and long loading times. On the frontend side we provide a `PageLoadingTable` which handles the loading. Currently at the end of the list there is a 'Load More' button to fetch the next page of items.
https://github.com/eclipse-tractusx/portal-shared-components/blob/main/src/components/basic/Table/PageLoadingTable.tsx#L142-L155

This concept of a manual trigger seems old-fashioned. We suggest a state of the art loading mechanism that automatically fetches the next page of items as the user is scrolling down, reaching the end of the list.

### Acceptance Criteria

- [ ] [load more button has been removed from the page loading table]
- [ ] [next page fetch is triggered once the end of the table comes into view (ideally already a little bit before that)]
- [ ] [a loading icon is shown while the fetch is in progress]
- [ ] [if there are no more items no fetch must be triggered and no loading icon shown - instead a hint that all items have been loaded]

### Additional Information

A loading mechanism like described has already been implemented as proof of concept in the Notification Center of the portal frontend
https://github.com/eclipse-tractusx/portal-frontend/blob/main/src/components/pages/NotificationCenter/NotificationPager.tsx
However that implementation is using the Redux application state which we have not in the shared components.