message: couple more type tweaks
diff: @@ -158,13 +158,13 @@ declare module '@primer/components' {
  export const StyledOcticon: React.FunctionComponent<StyledOcticonProps>
  export interface DropdownProps extends DetailsProps {}
  - export interface DropdownItem extends CommonProps, Omit<React.HTMLAttributes<HTMLLIElement>, 'color'> {}
  + export interface DropdownItemProps extends CommonProps, Omit<React.HTMLAttributes<HTMLLIElement>, 'color'> {}
  export interface DropdownMenuProps extends CommonProps, Omit<React.HTMLAttributes<HTMLUListElement>, 'color'> {
  direction?: 'ne'| 'e'| 'se'| 's'| 'sw'| 'w'
  }
  - export interface DropdownButtonProps extends ButtonProps, Omit<React.HTMLAttributes, 'color'> {}
  + export interface DropdownButtonProps extends ButtonProps {}
  export interface DropdownCaretProps extends CommonProps, Omit<React.HTMLAttributes<HTMLDivElement>, 'color'> {}
  @@ -307,7 +307,7 @@ declare module '@primer/components' {
  selected?: boolean
  }
  - export interface SelectMenuFooterProps extends CommonProps, Omit<React.FooterHTMLAttributes<HTMLElement>, 'color'> {}
  + export interface SelectMenuFooterProps extends CommonProps, Omit<React.HTMLAttributes<HTMLElement>, 'color'> {}
  export interface SelectMenuDividerProps extends CommonProps, Omit<React.HTMLAttributes<HTMLDivElement>, 'color'> {}
  