StatisticalQueryGroupAndSort fixes

[williambohrmann3]

Description

• Fixes app crashes by using List instead of an ObservableCollection
• Cleans up UI
• Replaces ListViews with CollectionViews
• Adds full stops to comments
• Follows established C# coding conventions (for example, use of var)
• Fixes results screen (cannot scroll nor close results)
• Remove unused ShortName class member

Screenshots (before then after)

Config query

Results

Type of change

• Bug fix

Platforms tested on

• MAUI WinUI
• MAUI Android
• MAUI iOS
• MAUI MacCatalyst

Checklist

• Self-review of changes
• All changes work as expected on all affected platforms
• There are no warnings related to changes
• Code is commented and follows .NET conventions and standards
• Codemaid and XAML styler extensions have been run on every changed file
• No unrelated changes have been made to any other code or project files
• Screenshots are correct size and display in description tab (800 x 600 on Windows, MAUI mobile platforms use the MAUI Windows screenshot)

[duffh]

lgtm 👍