[A11y] - Usability - The selected option disappears from the text field when the combo box receives focus.

### Current Behaviour
`The selected option disappears from the text field when the combo box receives focus.
It is recommended to display the selected option on the text field combo box when it receives focus as it is ideal behavior.`

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### Expected Behaviour
``

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### Impact

- [ ] Blocker
- [ ] Serious
- [ ] Critical
- [ ] Moderate
- [x] Minor

### Issue Details

View Issue 1505022

_**Auditor ID**_ : [1505022](https://axeauditor.dequecloud.com/issue-global-search?searchKeyword=1505022&searchOn=id)

_**description**_ : undefined

_**Page Name**_ : Combo box

_**source**_ : ``

_**Screenshots**_ : [Selected option](https://axeauditor.dequecloud.com/api/v1/file/b540dd04-5885-11ee-80b9-0b8b79e2b756)

Start by locating the combo box component described in issue 1387 and reproduce the focus behavior using the linked “Selected option” screenshot as reference. The work is done when focusing the combo box leaves the selected option visible in the text field and the behavior is verified against the reported case.

Written by the indexing model from the issue text.