Issue 846 (Memory leak in Datepicker component) resolution for version 16

[Blackvals]

PR Details

• Fix in component .ts
• Version up in package.json

Description

See related issue for details

Related Issue

846

Motivation and Context

Solves a memory leak

How Has This Been Tested

Tested locally on previous version (14)

Types of changes

• [ ] Docs change / refactoring / dependency upgrade
• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• [x] I have read the CONTRIBUTING document
• [x] My code follows the code style of this project
• [ ] My change requires a change to the documentation
• [ ] I have updated the documentation accordingly (README.md for each UI component)
• [ ] I have added tests to cover my changes (at least 1 spec for each UI component with the same coverage as the master branch)
• [ ] All new and existing tests passed
• [ ] A new branch needs to be created from master to evolve previous versions
• [x] Increase version in package.json following Semantic Versioning
• [ ] All UI components must be added into the showcase (at least 1 component with the default settings)
• [ ] Add the issue into the right project with the proper status (In progress)

[codecov[bot]]

Codecov Report

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

Project coverage is 56.06%. Comparing base (db404e3) to head (3084a95).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## 16.1.x #849 +/- ## ========================================== - Coverage 56.08% 56.06% -0.02% ========================================== Files 128 128 Lines 3536 3535 -1 Branches 620 620 ========================================== - Hits 1983 1982 -1 Misses 1446 1446 Partials 107 107 ```

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