Make Pagination more dynamic and enhance the search box, for better usability for larger lists

**Is your feature request related to a problem? Please describe.**
The pagination in authentik becomes basically unusable with large amounts of users.

**Describe the solution you'd like**
Implement the following changes to how pagination is handled in list pages, for example in Directory->Users:
- Allow to select how many list entries should be shown per page (i.e., add a dropdown with options for example like "20|50|200|1000|all"
- Don't just have buttons for "next page" and "previous page", but also add the option to go to last/first page
- Allow search with wildcards, Allow case-insensitive search
- Allow to select all items of a list to run actions like "Delete", even when not all items are shown.

**Describe alternatives you've considered**
Using the API or writing a script would be an option, but I think this functionality should really belong into the UI of a user management system.

**Additional context**
(none)