feat(window-state): make flags optional in js side

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Package Changes Through 8da6773

There are 4 changes which include log with minor, log-js with minor, window-state with minor, window-state-js with minor

Planned Package Versions

The following package releases are the planned based on the context of changes in this pull request.

package	current	next
api-example	2.0.24	2.0.25
api-example-js	2.0.20	2.0.21
log	2.3.1	2.4.0
log-js	2.3.1	2.4.0
window-state	2.2.2	2.3.0
window-state-js	2.2.2	2.3.0

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