D24846: Port kcm icons to kconfigxt

[Benjamin Port]

bport added inline comments.

INLINE COMMENTS

> broulik wrote in IconSizePopup.qml:45
> Do you not need to leave this (or a similar) connect in place?

This one is replaced (and that fix bug described above by call onVisibleChange)
and with kconfigxt property handling

> broulik wrote in IconSizePopup.qml:47-53
> I don't like this duplication, especially since sometimes you use `currentIndex` and sometimes the `currentCategory`

I wiil look if I can simplify that

REPOSITORY
  R119 Plasma Desktop

REVISION DETAIL
  https://phabricator.kde.org/D24846

To: bport, ervin, mart, #plasma
Cc: broulik, plasma-devel, LeGast00n, The-Feren-OS-Dev, jraleigh, fbampaloukas, GB_2, ragreen, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, ahiemstra, mart
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