Create a typescript enum for sort switch case

We try to avoid using "string" values directly in code, this is to avoid duplication - imagine if we used the string "Bubble Sort" in 3 file, if that string changed now we have to remember to change it in 3 files.

So instead of doing the following:

function sort(algorithm: string) {
  switch (algorithm) {
    case "Bubble Sort":
      bubbleSort(arr, setArr);
      break;
    case "Quick Sort":
      quickSort(arr, 0, arr.length - 1, setArr);
      break;
    case "Selection Sort":
      selectionSort(arr, arr.length, setArr);
      break;
    case "Insertion Sort":
      insertionSort(arr, arr.length, setArr);
      break;
    case "Merge Sort":
      MergeSort(arr, setArr);
      break;
  }
}

Replace string like Bubble Sort with a typescript string enum. Documentation here: https://www.typescriptlang.org/docs/handbook/enums.html#string-enums

Note: Also remember to replace all usages of these string with enum reference

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