feat (Patient selection UI): Zoom to selected patient

[SahajR]

This is a basis for the search feature #21.

Currently, a useEffect hook reacts to a selected user in the graph. I have currently rewritten the store state to remove the redundant selected field.

For the search by Id to work, we can find the coords of the patient (after finding it by id) through the vis.js API. Let me know if I should go ahead with this next step. I'll also add a search input in the side panel for the purpose.

Waiting for your response after the review.

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[someshkar]

Can you make a search and zoom to patient UI? Like a searchbar where you can find a patient by Id/City/Travel History and zoom to the patient on the map?

This would be a lot more useful.

Also, please resolve the merge conflicts with the latest commit to the master branch.

[SahajR]

Alright.

[SahajR]

@someshkar Added search by patient id. Review if this workflow works. If so, I will add search capabilities with other criteria and finish this feature to close #21

[someshkar]

@SahajR this works really well! Merging.