feat: render drop target

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 14.28571% with 48 lines in your changes missing coverage. Please review.

Project coverage is 73.12%. Comparing base (61d4363) to head (c92e705).

Files	Patch %	Lines
...t/service/selection/desktop_selection_service.dart	11.62%	38 Missing :warning:
...or_component/service/selection_service_widget.dart	14.28%	6 Missing :warning:
...nt/service/selection/mobile_selection_service.dart	0.00%	3 Missing :warning:
...or/editor_component/service/selection_service.dart	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #848 +/- ## ========================================== - Coverage 73.34% 73.12% -0.23% ========================================== Files 315 316 +1 Lines 14592 14647 +55 ========================================== + Hits 10703 10710 +7 - Misses 3889 3937 +48 ```

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