Fixed Magnifier Window

[Boumtchack]

Link to issue number:

#19462

Summary of the issue:

Phase 2 of Magnifier requier more types than Fullscreen, this Pr will concentrate on Fixed Window

Description of user facing changes:

Users will be able to switch from Fullscreen to Fixed magnifier.

Description of developer facing changes:

Description of development approach:

Fixed/Docked/Lens should be using the same logic so getting one down should open a good path for the others. Focusing on one seems the best wait to implement them.

Testing strategy:

Known issues with pull request:

Code Review Checklist:

• Documentation:
  • Change log entry
  • User Documentation
  • Developer / Technical Documentation
  • Context sensitive help for GUI changes
• Testing:
  • Unit tests
  • System (end to end) tests
  • Manual testing
• UX of all users considered:
  • Speech
  • Braille
  • Low Vision
  • Different web browsers
  • Localization in other languages / culture than English
• API is compatible with existing add-ons.
• Security precautions taken.