Keep Scoop source placeholders valid across source reloads - #5596

Field 'HelpText' is declared as 'readonly' but is initialized with a constant value. Mark this field as 'const' instead. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1802)

Possible null reference argument for parameter 'grid' in 'bool TuiFocus.SeatDataGridFocus(DataGrid grid)'.

Possible null reference argument for parameter 'list' in 'bool TuiFocus.SeatListFocus(ListBox list)'.

Possible null reference argument for parameter 'arg' in 'long Func<Uri, long>.Invoke(Uri arg)'.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'arg' in 'long Func<Uri, long>.Invoke(Uri arg)'.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Do not create tasks without passing a TaskScheduler (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2008)

This call site is reachable on all platforms. 'SecureSettings.Args.ENABLE_FOR_USER' is only supported on: 'windows' 10.0.19041 and later. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1416)

Possible null reference argument for parameter 'grid' in 'bool TuiFocus.SeatDataGridFocus(DataGrid grid)'.

Possible null reference argument for parameter 'list' in 'bool TuiFocus.SeatListFocus(ListBox list)'.

Possible null reference argument for parameter 'arg' in 'long Func<Uri, long>.Invoke(Uri arg)'.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'arg' in 'long Func<Uri, long>.Invoke(Uri arg)'.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Do not create tasks without passing a TaskScheduler (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2008)

Member 'ClearSuccessfulOperations' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Member 'RetryFailedOperations' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Member 'OpenDownloadDirectory' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Member 'NewCatalogAsync' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Member 'OpenEditor' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Use 'string.Contains' instead of 'string.IndexOf' to improve readability (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2249)

The field UniGetUI.Avalonia.ViewModels.Pages.SoftwareCatalogViewModel._sortAscending is annotated with

Possible null reference argument for parameter 'arg' in 'long Func<Uri, long>.Invoke(Uri arg)'.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

This call site is reachable on all platforms. 'SecureSettings.Args.ENABLE_FOR_USER' is only supported on: 'windows' 10.0.19041 and later. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1416)

Possible null reference argument for parameter 'grid' in 'bool TuiFocus.SeatDataGridFocus(DataGrid grid)'.

Possible null reference argument for parameter 'list' in 'bool TuiFocus.SeatListFocus(ListBox list)'.

Possible null reference argument for parameter 'arg' in 'long Func<Uri, long>.Invoke(Uri arg)'.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'arg' in 'long Func<Uri, long>.Invoke(Uri arg)'.

Dereference of a possibly null reference.

Dereference of a possibly null reference.