fix(store): check if state option is typeof undefined before setting (not just false-ish)

update: export useWindow
update: remove logs from useHandle
Signed-off-by: Braks <78412429+bcakmakoglu@users.noreply.github.com>

src/index.ts

@@ -21,6 +21,7 @@ export { defaultEdgeTypes, defaultNodeTypes } from './utils/store'
 export { default as useZoomPanHelper } from './composables/useZoomPanHelper'
 export { default as useVueFlow } from './composables/useVueFlow'
 export { default as useHandle } from './composables/useHandle'
+export { default as useWindow } from './composables/useWindow'
 
 export * from './additional-components'
 export * from './types'