Move the qt models to their own folder

Felt like the src folder was getting a bit crowded so move all the models to a folder named models.

src/models/serverlistmodel.h

@@ -0,0 +1,47 @@
+// SPDX-FileCopyrightText: 2022 James Graham <james.h.graham@protonmail.com>
+// SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
+
+#pragma once
+
+#include <csapi/list_public_rooms.h>
+
+#include <QAbstractListModel>
+#include <QPointer>
+#include <QUrl>
+
+class ServerListModel : public QAbstractListModel
+{
+    Q_OBJECT
+
+public:
+    struct Server {
+        QString url;
+        bool isHomeServer;
+        bool isAddServerDelegate;
+        bool isDeletable;
+    };
+    enum EventRoles {
+        UrlRole = Qt::UserRole + 1,
+        IsHomeServerRole,
+        IsAddServerDelegateRole,
+        IsDeletableRole,
+    };
+
+    ServerListModel(QObject *parent = nullptr);
+
+    [[nodiscard]] QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
+    [[nodiscard]] int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+
+    [[nodiscard]] QHash<int, QByteArray> roleNames() const override;
+
+    Q_INVOKABLE void checkServer(const QString &url);
+    Q_INVOKABLE void addServer(const QString &url);
+    Q_INVOKABLE void removeServerAtIndex(int index);
+
+Q_SIGNALS:
+    void serverCheckComplete(QString url, bool valid);
+
+private:
+    QList<Server> m_servers;
+    QPointer<Quotient::QueryPublicRoomsJob> m_checkServerJob = nullptr;
+};