Split message content into its own module

This is laying some groundwork for the rich text chatbar.

src/messagecontent/QuoteComponent.qml

@@ -0,0 +1,74 @@
+// SPDX-FileCopyrightText: 2024 James Graham <james.h.graham@protonmail.com>
+// SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
+
+import QtQuick
+import QtQuick.Controls as QQC2
+import QtQuick.Layouts
+
+import org.kde.kirigami as Kirigami
+
+import org.kde.neochat
+
+QQC2.Control {
+    id: root
+
+    /**
+     * @brief The matrix ID of the message event.
+     */
+    required property string eventId
+
+    /**
+     * @brief The message author.
+     *
+     * A Quotient::RoomMember object.
+     *
+     * @sa Quotient::RoomMember
+     */
+    required property NeochatRoomMember author
+
+    /**
+     * @brief The display text of the message.
+     */
+    required property string display
+
+    /**
+     * @brief The user selected text has changed.
+     */
+    signal selectedTextChanged(string selectedText)
+
+    Layout.fillWidth: true
+    Layout.fillHeight: true
+    Layout.maximumWidth: Message.maxContentWidth
+
+    topPadding: 0
+    bottomPadding: 0
+
+    contentItem: TextEdit {
+        id: quoteText
+        Layout.fillWidth: true
+        topPadding: Kirigami.Units.smallSpacing
+        bottomPadding: Kirigami.Units.smallSpacing
+
+        text: root.display
+        readOnly: true
+        textFormat: TextEdit.RichText
+        wrapMode: TextEdit.Wrap
+        color: Kirigami.Theme.textColor
+
+        font.italic: true
+
+        onSelectedTextChanged: root.selectedTextChanged(selectedText)
+
+        TapHandler {
+            enabled: !quoteText.hoveredLink
+            acceptedDevices: PointerDevice.TouchScreen
+            acceptedButtons: Qt.LeftButton
+            onLongPressed: RoomManager.viewEventMenu(root.eventId, root.Message.room, root.author, root.Message.selectedText, root.Message.hoveredLink);
+        }
+    }
+
+    background: Rectangle {
+        color: Kirigami.Theme.backgroundColor
+        radius: Kirigami.Units.cornerRadius
+    }
+}