Design of current combobox is not screen-reader accessible, because there is no visible button to open the menu

[clukhei]

@rav3 Design of current combobox is not screen-reader accessible, because there is no visible button to open the menu (see https://www.w3.org/WAI/ARIA/apg/patterns/combobox/examples/combobox-autocomplete-list/).

Currently, the input box acts as both input and button to open the menu. I need to add both aria roles combobox and button to the input box, which is not possible.

The button role is needed so that the user can click to open the menu via the screen-reader. Indicating only the combobox role is not sufficient.

Could the designers look into this? 🙏

@jmestxr @clukhei
Could you take alook at the figma. See if the new design will solve the issue
https://www.figma.com/file/vxEBjIkXXkxaB89h4OzUVV/branch/QTOmxVUru44yH45kvu4Exe/SGDS-Components-V2.0.0?type=design&node-id=5181%3A2072&mode=design&t=tRYiRresDUqMmkZV-1

Originally posted by @rav3 in #128 (comment)