D27838: Port to new QML Connections syntax

[Jonah Brüchert]

jbbgameich created this revision.
Herald added a project: Plasma.
Herald added a subscriber: plasma-devel.
jbbgameich requested review of this revision.

REVISION SUMMARY
  Fixes deprecation warnings with Qt 5.15

TEST PLAN
  No deprecations warnings, everything still works

REPOSITORY
  R858 Qt Quick Controls 2: Desktop Style

BRANCH
  5.15-connections-syntax (branched from master)

REVISION DETAIL
  https://phabricator.kde.org/D27838

AFFECTED FILES
  org.kde.desktop/ComboBox.qml
  org.kde.desktop/Menu.qml

To: jbbgameich
Cc: plasma-devel, Orage, LeGast00n, The-Feren-OS-Dev, cblack, jraleigh, zachus, fbampaloukas, GB_2, ragreen, ZrenBot, ngraham, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, ahiemstra, mart
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