fix: algin instance icon

Signed-off-by: Sefa Eyeoglu <contact@scrumplex.net>

launcher/ui/instanceview/InstanceDelegate.cpp

@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "InstanceDelegate.h"
+#include "InstanceList.h"
+
+InstanceDelegate::InstanceDelegate(QObject* parent) : QStyledItemDelegate(parent) {}
+
+void InstanceDelegate::initStyleOption(QStyleOptionViewItem* option, const QModelIndex& index) const
+{
+    QStyledItemDelegate::initStyleOption(option, index);
+    if (index.column() == InstanceList::Icon) {
+        // make decoration fill cell, subtract default margins
+        option->decorationSize = option->rect.size().shrunkBy(QMargins(3, 1, 3, 1));
+    }
+}