Search&Replace: add "Role" suffix to "MatchItem" role

So it is consistent with all the other roles.

addons/search/MatchModel.cpp

@@ -1008,7 +1008,7 @@ QVariant MatchModel::data(const QModelIndex &index, int role) const
             return match.replaceText;
         case PlainTextRole:
             return matchToPlainText(match);
-        case MatchItem:
+        case MatchItemRole:
             return QVariant::fromValue(match);
         case LastMatchedRangeInFileRole:
             qWarning() << "Requested last matched line from a match item instead of file item1";

addons/search/MatchModel.h

@@ -60,7 +60,7 @@ public:
         ReplacedRole,
         ReplaceTextRole,
         PlainTextRole,
-        MatchItem,
+        MatchItemRole,
         LastMatchedRangeInFileRole,
     };
     Q_ENUM(MatchDataRoles)

addons/search/SearchResultsDelegate.cpp

@@ -58,7 +58,7 @@ static int lineNumAreaWidth(const QModelIndex &index, const QFontMetrics &fm)
 
 void SearchResultsDelegate::paintMatchItem(QPainter *p, const QStyleOptionViewItem &opt, const QModelIndex &index) const
 {
-    const KateSearchMatch match = index.data(MatchModel::MatchItem).value<KateSearchMatch>();
+    const KateSearchMatch match = index.data(MatchModel::MatchItemRole).value<KateSearchMatch>();
     const int line = match.range.start().line() + 1;
     const int col = match.range.start().column() + 1;
     const QString lineCol = QStringLiteral("%1:%2").arg(line).arg(col);