2021-06-17 solve the problem of QML borderless window stretching, window jitter and flicker when stretching and shrinking

solve qml Borderless window stretch , Window jitter and flicker when scaling

One .
Use brother Tao ：https://github.com/jaredtao/TaoQuick in
FrameLessView Borderless scheme

Two .
FrameLessView Use view.showMaximized() when , An out of screen... Will occur bug.

3、 ... and . solve bug The way to ：
1. Violent methods ： Controls around the border , Two sets are used , They are window maximization and non window maximization respectively ,
After my own experiment , Window overflow when maximizing real = 8, utilize anchors.rightMargin: 8 Reserve the overflow part

2. Can be rewritten view.showMaximized().