- class component with generic, so it's easier to use a render prop

- we can avoid having to memoizing styles however by using `logicalStyle()` and `euiFormMaxWidth()` separate from combobox's styles

+ remove fullWidth modifier class

- DRY it out to a prop and the internal `EuiComboBoxOptionAppendPrepend` util

- remove applicable Sass

- requires render prop due to class component with generic :T
+ `removeOptionMessage` requires some extra typing now due to that

- remove unnecessary icon className/CSS - now handled by EuiFormControlLayout

+ remove unnecessary `__inputWrap--fullWidth` - it's already full width by default, width is set by the combobox wrapper

- use `inherit` property to handle both compressed and uncompressed styles
- clean up form control styles into a nested obj

- remove more modifiers from EuiCombBox (no Kibana usages)

+ convert margins to flex gap instead

+ move max-width CSS - no longer needs specificty override

+ convert EuiComboBoxPill from a class component to a function component

- move JSX consts to inline JSX instead so we don't need multiple `RenderWithEuiStylesMemoizer`

+ DRY out new constant for `200` max height

+ import reorder

- EuiFilterSelectItem is being used instead

- no top level export, so no deprecation/breaking change needed

(lazily - see comment rationale)

(also lazily, since EuiSelectable has its own group labels)

- tl;dr it shouldn't wrap

+ move tooltip props to where it's being used in the story instead of a const