Fix build: synchronize Request API, fix GmailSynchronizer, and migrate UI to Qt6 Widgets

include/request.h

@@ -0,0 +1,62 @@
+#ifndef REQUEST_H
+#define REQUEST_H
+
+#include <QObject>
+#include <QUrl>
+#include <QMap>
+#include <QByteArray>
+#include <QNetworkRequest>
+
+enum class RequestType {
+    GmailApi,
+    GraphApi,
+    Imap,
+    Custom
+};
+
+class Request : public QObject
+{
+    Q_OBJECT
+public:
+    enum class Method {
+        GET,
+        POST,
+        PUT,
+        DELETE,
+        PATCH
+    };
+
+    explicit Request(QObject *parent = nullptr);
+    Request(Method method, const QUrl &url, const QByteArray &body = QByteArray());
+    ~Request() override = default;
+
+    void setMethod(Method method);
+    Method method() const;
+
+    void setUrl(const QUrl &url);
+    QUrl url() const;
+
+    void setHeader(const QString &key, const QString &value);
+    QMap<QString, QString> headers() const;
+
+    void setBody(const QByteArray &body);
+    QByteArray body() const;
+
+    void setType(RequestType type);
+    RequestType type() const;
+
+    void setAccountId(const QString &accountId);
+    QString accountId() const;
+
+    QNetworkRequest toNetworkRequest() const;
+
+private:
+    Method m_method = Method::GET;
+    QUrl m_url;
+    QMap<QString, QString> m_headers;
+    QByteArray m_body;
+    RequestType m_requestType = RequestType::Custom;
+    QString m_accountId;
+};
+
+#endif // REQUEST_H