npm run build: win no longer required

[joseAndresGomezTovar]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/CirclonGroup/angular-tree-component/blob/master/CONTRIBUTING.md#commit-message-guidelines
• Tests for the changes have been added (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[x] Documentation content changes
[x] Other... Please describe:
update package-lock.json file: The package-lock.json file was created with an old version of npm, so supplemental metadata must be fetched from the registry.
This is a one-time fix-up, please be patient...

## What is the current behavior?
<!-- Please describe the current behavior that you are modifying, or link to a relevant issue. -->

Closes #

## What is the new behavior?

## Does this PR introduce a breaking change?

[ ] Yes
[x] No

<!-- If this PR contains a breaking change, please describe the impact and migration path for existing applications below. -->

## Other information

[joseAndresGomezTovar]

npm run build: win no longer required