Bugs with <uui-combobox> - scroll, placeholder text and icons

[kraftvaerk-chth]

Which exact UI Library version are you using? For example: 1.0.1 - don't just write v1.

1.11.0

Bug summary

I would like to report a couple of bugs related to the component

1. Placeholder of the input field is not exposed, and can not be set when inserting the combobox component

2. There is an appended that we would like to remove and replace with a icon-search icon. We are able to append the icon-search icon, but the does not go away when appending an icon

3. When inserting the nested in another web component with a shadow DOM, the scroll event listener is placed correctly on all parent elements that have a scrollbar, so the popover position is not updated when scrollingThis works fine in storybook, because the entire document has a scroll bar, but uui-combobox's this.parentElement returns null due to it being inserted in a shadow DOM, so it never finds all the parent elements that have a scrollbar
   The component that has the relevant code for bug V0/feature/dropdown popper #3 is in

Specifics

No response

Steps to reproduce

Insert a nested inside another web component with its own shadow DOM.

1. You will not be able to set a placeholder text for the input field
2. You will not be able to remove the expand icon, even when adding another icon in the "input-append" slot

Make sure the parent component that the is inserted in has a scrollbar on the y-axis
Make sure there are inserted some options in the combobox
Open the popover/dropdown of the combobox
3. When scrolling, the popover/dropdown stays in place, because the scroll event is occuring on the parent element with the scroll bar, which does not have a scroll event listener attached by the

Expected result / actual result

No response