UI: add pagination and identity creation

[edlerd]

Done

• Add pagination to clients, schemas and identity lists in ui.
• Add identity creation form
• Add identity deletion

fixes WD-10253

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 75.05%. Comparing base (f8a335c) to head (5f55463). Report is 27 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #274 +/- ## ========================================== + Coverage 73.83% 75.05% +1.21% ========================================== Files 37 40 +3 Lines 3528 3656 +128 ========================================== + Hits 2605 2744 +139 + Misses 774 754 -20 - Partials 149 158 +9 ```

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