Screen Reader support for Qt6 WebAssembly

What is the benefit? Why is this valuable?

Many companies have regulatory requirements to support accessibility, screen reader is one of the supporting features for vision impaired. Keyboard shortcusts are used also in this context.

What are common use cases?

Wasm applicaiton needing screen reader support, see insights.

Technical information

This epic describes the implementation for Qt6 screen reader. Subtickets containing individual tasks. Phases:

1. Basic UI elements

• Label
• Button
• CheckBox
• RadioButton
• Slider, ScrollBar
• Spinbox

1. Editable Text Elements

• Line edit
• Text area

1. Container Elements 
   - Tab area
   - Scrollview

• Dialog, Popup
  - Combobox
• Menus
• ToolBar

1. Complex UI Elements (stretch goal)

• list view
• table view
• tree view 
  Source/reference for UI element types: 
  [https://doc\.qt\.io/qt-6/qtwidgets-index\.html]
  https://doc.qt.io/qt-6/qtquick-controls2-qmlmodule.html