Added notes section to app documentation to include note about title …

[LunaMeadows]

Added notes section to app documentation to include note about title bar name not displaying properly on gnome wayland when ran with briefcase dev or python -m

Adds important information for app devs to curb troubleshooting known issues

Fixes #1862

PR Checklist:

• All new features have been tested
• All new features have been documented
• I have read the CONTRIBUTING.md file
• I will abide by the code of conduct

[freakboy3742]

I've provided a suggested rewording for grammar purposes; there's also a missing changenote, and you'll need to add Wayland to the spell check dictionary. You can check the operation of the spell checker with tox -e docs-lint.

[freakboy3742]

Suggested change

	* Apps ran in a Gnome Wayland environment with python -m or briefcase dev will not show
	the formal app name in the title bar. In order to make the title show properly, you
	will need to build or package your app with `Briefcase
	<https://briefcase.readthedocs.io/en/stable>`__.
	* Apps executed under Wayland on Linux environment may not show the app's formal name
	correctly. Wayland considers many aspects of app operation to be the domain of the
	windowing environment, not the app; as a result, some API requests will be ingored
	under a Wayland environment. Correctly displaying the app's formal name requires the
	use of a desktop metadata that Wayland can read. Packaging your app with `Briefcase
	<https://briefcase.readthedocs.io/en/stable>`__ is one way to produce this metadata.

[freakboy3742]

The change notes should be framed as potential release notes:

Suggested change

	Documentation note about Wayland compatability for app title added
	Some limitations on App presentation imposed by Wayland have been documented.

[freakboy3742]

Thanks for the update!