D17410: Add alternatives button to applet configuration in panel edit mode

[Björn Feber]

GB_2 created this revision.
GB_2 added reviewers: Plasma, VDG.
GB_2 added projects: Plasma, VDG.
Herald added a subscriber: plasma-devel.
GB_2 requested review of this revision.

REVISION SUMMARY
  There is a configure button and an alternatives button in the context menu of an applet, but there is no alternatives button in the popup/overlay of an applet in the panel edit mode, so this adds that button, to make it more consistent and easier to find.
  F6461739: Alternatives Button in Applet Configuration in Panel Edit Mode.png <https://phabricator.kde.org/F6461739>

TEST PLAN
  Hover over an applet in the panel edit mode.

REPOSITORY
  R119 Plasma Desktop

REVISION DETAIL
  https://phabricator.kde.org/D17410

AFFECTED FILES
  containments/panel/contents/ui/ConfigOverlay.qml

To: GB_2, #plasma, #vdg
Cc: #vdg, plasma-devel, #plasma, alexde, IohannesPetros, trickyricky26, ragreen, Pitel, crozbo, ndavis, ZrenBot, firef, skadinna, lesliezhai, ali-mohamed, jensreuterberg, aaronhoneycutt, abetts, sebas, apol, mbohlender, mart
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