Add rule to check the usage of web app manifest's short_name & name

[alrra]

See also:

• Steps for processing the name member
• Steps for processing the short_name member

Ref: #32

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Android:

• There are no differences between what browsers do (tested with Chrome, Opera, and Samsung Internet)

• Where the text will be truncated depends on:

  • on the length of the characters sed

    

  • on the font used

    

  • on the size of the app icon + name, or where it's included

    

    

    

Note: The recommendation from the Chrome team was, and still is less then or 12 characters.

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• While on iOS there is no support for the manifest file, look into how the app text behaves (it's very similar)
• Edge/Windows?