Adds a new "QgsDataItemGuiProviderUtils" class, with a generic
function for handling deletion of browser connection items.
Replace all the duplicate connection deletion logic from the
different browser connection providers with calls to the
generic function.
In addition to removing a lot of duplicate code, the new
generic function correctly handles deletion of multiple
selected connections (previously, only the first connection
would actually be removed).
Fixes#26276
This custom QLayout class allows for overlaying child widgets on top
of their parent widget.
It can be used like this:
layout = QgsOverlayWidgetLayout()
parent_widget.setLayout(layout)
layout.setContentsMargins(20,20,20,20)
layout.addWidget(QGroupBox(), Qt.Edge.LeftEdge)
layout.addWidget(QLabel('My label on top of a parent!'), Qt.Edge.TopEdge)
layout.addWidget(QGroupBox(), Qt.Edge.TopEdge)
