feat: Add edit file tool (#249)

* feat: Add edit file tool
* feat: Add icons for action buttons

ChatView/qml/parts/Toast.qml

@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2025 Petr Mironychev
+ *
+ * This file is part of QodeAssist.
+ *
+ * QodeAssist 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, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QodeAssist 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 QodeAssist. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import QtQuick
+
+Rectangle {
+    id: root
+
+    property alias toastTextItem: textItem
+    property alias toastTextColor: textItem.color
+
+    property string errorText: ""
+    property int displayDuration: 5000
+
+    width: Math.min(parent.width - 40, textItem.implicitWidth + radius)
+    height: visible ? (textItem.implicitHeight + 12) : 0
+    anchors.horizontalCenter: parent.horizontalCenter
+    anchors.top: parent.top
+    anchors.topMargin: 10
+
+    color: "#d32f2f"
+    radius: height / 2
+    border.color: "#b71c1c"
+    border.width: 1
+    visible: false
+    opacity: 0
+
+    TextEdit {
+        id: textItem
+
+        anchors.centerIn: parent
+        anchors.margins: 6
+        text: root.errorText
+        color: palette.text
+        font.pixelSize: 13
+        wrapMode: TextEdit.Wrap
+        width: Math.min(implicitWidth, root.parent.width - 60)
+        horizontalAlignment: TextEdit.AlignHCenter
+        readOnly: true
+        selectByMouse: true
+        selectByKeyboard: true
+        selectionColor: "#b71c1c"
+    }
+
+    function show(message) {
+        errorText = message
+        visible = true
+        showAnimation.start()
+        hideTimer.restart()
+    }
+
+    function hide() {
+        hideAnimation.start()
+    }
+
+    NumberAnimation {
+        id: showAnimation
+
+        target: root
+        property: "opacity"
+        from: 0
+        to: 1
+        duration: 200
+        easing.type: Easing.OutQuad
+    }
+
+    NumberAnimation {
+        id: hideAnimation
+
+        target: root
+        property: "opacity"
+        from: 1
+        to: 0
+        duration: 200
+        easing.type: Easing.InQuad
+        onFinished: root.visible = false
+    }
+
+    Timer {
+        id: hideTimer
+
+        interval: root.displayDuration
+        running: false
+        repeat: false
+        onTriggered: root.hide()
+    }
+}