fix(inventory): Drap and drop on already equipped slot

[codecov[bot]]

Codecov Report

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

Comparison is base (311a955) 96.30% compared to head (3da2e4c) 96.30%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #316 +/- ## ========================================= Coverage 96.30% 96.30% - Complexity 8857 8861 +4 ========================================= Files 1386 1386 Lines 22546 22552 +6 Branches 1392 1393 +1 ========================================= + Hits 21713 21719 +6 Misses 632 632 Partials 201 201 ```

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