Qt: Placate Coverity a bit

src/platform/qt/ApplicationUpdater.cpp

@@ -100,6 +100,7 @@ ApplicationUpdater::UpdateInfo ApplicationUpdater::currentVersion() {
 	info.version = QLatin1String(projectVersion);
 	info.rev = gitRevision;
 	info.commit = QLatin1String(gitCommit);
+	info.size = 0;
 	return info;
 }
 

src/platform/qt/BattleChipModel.h

@@ -49,10 +49,10 @@ private:
 	BattleChip createChip(int id) const;
 
 	QMap<int, QString> m_chipIdToName;
-	int m_flavor;
+	int m_flavor = 0;
 	int m_scale = 1;
 
 	QList<BattleChip> m_deck;
 };
 
-}
+}

src/platform/qt/DisplayQt.h

@@ -42,8 +42,8 @@ protected:
 
 private:
 	bool m_isDrawing = false;
-	int m_width;
-	int m_height;
+	int m_width = -1;
+	int m_height = -1;
 	QImage m_backing{nullptr};
 	QImage m_oldBacking{nullptr};
 	std::shared_ptr<CoreController> m_context = nullptr;