fix: date editor clear/reset not working in composite editor

[ghiscoding]

• add resetDatePicker() to correctly reset date picker and reset to today's date

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Codecov Report

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

Project coverage is 99.8%. Comparing base (c2b54ba) to head (86295d8). Report is 1 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1735 +/- ## ======================================== + Coverage 99.8% 99.8% +0.1% ======================================== Files 187 187 Lines 30723 30733 +10 Branches 9772 9774 +2 ======================================== + Hits 30634 30644 +10 Misses 89 89 ```

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