Issue: Select Options Displaying as List Instead of Dropdown

[unvired-swetasuman]

Description
The select options in the form do not display as a dropdown when clicked. Instead, they appear as a list below the select field. This behavior is inconsistent with the expected functionality of a dropdown component, which should ideally present options in a dropdown format.

Steps to Reproduce

1. Go to https://codesandbox.io/p/sandbox/admiring-kepler-vqjf4x
2. Click on the "Position" or "Shift" dropdown.
3. Observe that the options are displayed as a list below the select field rather than in a dropdown.

Expected Behavior
When clicking on the dropdown, the options should appear in a popover format, allowing for better visibility and interaction. The expected behavior is to have a user-friendly dropdown experience.

Screenshots

Additional Context
The current implementation uses Bootstrap CSS, but it appears that the styles for the select dropdown are not being applied correctly, leading to the options displaying as a list rather than in a dropdown.
Is importing CSS mandatory?

Missing Calendar Icon
Additionally, in the date created field, there should be a calendar icon displayed on the right side. Currently, this icon is missing, which could detract from the user experience by making date selection less intuitive. How can it be fixed?