Improve the app at the following part of code

[ParrotStone]

Try to extract and encapsulate the above part into a reusable part to avoid code duplication

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Try to use RxJS with React to improve the search and the overall performance(saved bandwidth from unnecessary requests to the backend API)

The associated method with the previous point

[ParrotStone]

Integrated RxJS into the search of the symptoms and working on the extracting and refactoring the code.