Fix: persist hidden nodes on rotate

[shivam1646]

resolves #173

• Doesn't clear hidden nodes, edges on layout change.
• Triggers the side effect to hide nodes on layout change.

[AykutSarac]

Thanks for the contribution! Why did you prefer a specific setLoading method over setGraphValue?

[shivam1646]

@AykutSarac
The idea was to not reset these values - collapsedParents, collapsedNodes, collapsedEdges whenever layout changes. Hence I call setLoading instead of setGraphValue (this resets all the collapsed items to []) on layout change.

Could also modify setGraphValue instead, such that it would conditionally reset the collapsed items.

[AykutSarac]

Makes sense! Thanks for the contribution again!

[shivam1646]

Thanks @AykutSarac
Also, json crack is an awesome product. Would love to make more meaningful contributions in the future!

[shivam1646]

@AykutSarac could you also please add the hacktoberfest-accepted label ?