D23284: Add keyboard control for ProceedDialog buttons

[Nathaniel Graham]

ngraham created this revision.
ngraham added reviewers: apol, Discover Software Store.
Herald added a project: Plasma.
Herald added a subscriber: plasma-devel.
ngraham requested review of this revision.

TEST PLAN
  Return/Enter triggers the OK button
  Escape triggers the Cancel button

REPOSITORY
  R134 Discover Software Store

BRANCH
  ProceedDialog-keyboard-nav (branched from master)

REVISION DETAIL
  https://phabricator.kde.org/D23284

AFFECTED FILES
  discover/qml/DiscoverWindow.qml

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