made a change to bound date of end and default to 1 hour after start

import { addMinutes } from "date-fns";

import { SimulationRequest } from "../../models/SimulationRequest.model";

import { SharedDatePicker } from "../shared/datepicker";

      <SharedDatePicker

        label="Start Date"

        onChange={(newDate) => {

          setForm({ ...form, start: newDate || "" });

          if (newDate) {

            const endDate = addMinutes(newDate, 60).toISOString();

            setForm({ ...form, start: newDate, end: endDate });

          }

        }}

        value={form.start}

      />

      <SharedDatePicker

        key={form.end}

        label="End Date"

        onChange={(newDate) => {

          setForm({ ...form, end: newDate || "" });

        }}

        value={form.end}

        boundedDate={new Date(form.start)}

      />

    </>

  );