Issue 846 (Memory leak in Datepicker component) resolution for version 14

[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

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)