feat: 侧边栏功能

[FeiWang1119]

按钮控制侧边栏展开和收缩

Log: 添加侧边栏功能 Influence: 侧边栏和标题栏 Change-Id: I39790200db1606a6513a99a47ecaab17c2f171ee

[github-actions[bot]]

All right about License Check!

[github-actions[bot]]

All right about README Check

[deepin-bot[bot]]

Doc Check bot :yellow_circle: some documents missing!

File	Line	Symbol
include/dtkwidget/widgets/dmainwindow.h	47	int Dtk::Widget::DMainWindow::sidebarWidth
include/dtkwidget/widgets/dmainwindow.h	48	void Dtk::Widget::DMainWindow::setSidebarWidth
include/dtkwidget/widgets/dmainwindow.h	50	bool Dtk::Widget::DMainWindow::sidebarVisble
include/dtkwidget/widgets/dmainwindow.h	51	void Dtk::Widget::DMainWindow::setSidebarVisible
include/dtkwidget/widgets/dmainwindow.h	53	bool Dtk::Widget::DMainWindow::sidebarExpanded
include/dtkwidget/widgets/dmainwindow.h	54	void Dtk::Widget::DMainWindow::setSidebarExpanded
include/dtkwidget/widgets/dmainwindow.h	58	int Dtk::Widget::DMainWindow::windowRadius
include/dtkwidget/widgets/dmainwindow.h	60	int Dtk::Widget::DMainWindow::borderWidth
include/dtkwidget/widgets/dmainwindow.h	61	QColor Dtk::Widget::DMainWindow::borderColor
include/dtkwidget/widgets/dmainwindow.h	63	int Dtk::Widget::DMainWindow::shadowRadius
include/dtkwidget/widgets/dmainwindow.h	64	QPoint Dtk::Widget::DMainWindow::shadowOffset
include/dtkwidget/widgets/dtitlebar.h	38	void Dtk::Widget::DTitlebar::removeWidget
src/widgets/private/dmainwindow_p.h	104	Dtk::Widget::DMainWindowPrivate::DMainWindowPrivate
src/widgets/private/dmainwindow_p.h	106	void Dtk::Widget::DMainWindowPrivate::init
src/widgets/private/dmainwindow_p.h	107	void Dtk::Widget::DMainWindowPrivate::updateTitleShadowGeometry
src/widgets/private/dmainwindow_p.h	101	Dtk::Widget::DMainWindowPrivate
src/widgets/private/dmainwindow_p.h	27	Dtk::Widget::DSidebarHelper::DSidebarHelper
src/widgets/private/dmainwindow_p.h	28	virtual Dtk::Widget::DSidebarHelper::~DSidebarHelper
src/widgets/private/dmainwindow_p.h	30	QColor Dtk::Widget::DSidebarHelper::backgroundColor
src/widgets/private/dmainwindow_p.h	34	void Dtk::Widget::DSidebarHelper::setBackgroundColor
src/widgets/private/dmainwindow_p.h	43	bool Dtk::Widget::DSidebarHelper::visble
src/widgets/private/dmainwindow_p.h	48	void Dtk::Widget::DSidebarHelper::setVisible
src/widgets/private/dmainwindow_p.h	57	bool Dtk::Widget::DSidebarHelper::expanded
src/widgets/private/dmainwindow_p.h	62	void Dtk::Widget::DSidebarHelper::setExpanded
src/widgets/private/dmainwindow_p.h	71	int Dtk::Widget::DSidebarHelper::width
src/widgets/private/dmainwindow_p.h	76	void Dtk::Widget::DSidebarHelper::setWidth
src/widgets/private/dmainwindow_p.h	86	void Dtk::Widget::DSidebarHelper::backgroundColorChanged
src/widgets/private/dmainwindow_p.h	87	void Dtk::Widget::DSidebarHelper::visibleChanged
src/widgets/private/dmainwindow_p.h	88	void Dtk::Widget::DSidebarHelper::expandChanged
src/widgets/private/dmainwindow_p.h	89	void Dtk::Widget::DSidebarHelper::widthChanged