When a .js module is used, every single file that imports it creates
its own duplicated environment in memory for that module.
Instead, use a simple QtObject with all the functions, and declare it in
Window.qml so that it is available to all children everywhere in the
app.
- Triple click selects the message body without date or name
- Quadruple click (yes) selects the entire message with name and date
- Quadruple click on the name label does the same
