fix: syntax highlighting lost when toggling Editable on MudCodeViewer - #642

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea, actions/setup-dotnet@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

The type 'T' cannot be used as type parameter 'TKey' in the generic type or method 'Dictionary<TKey, TValue>'. Nullability of type argument 'T' doesn't match 'notnull' constraint.

The type 'T' cannot be used as type parameter 'TKey' in the generic type or method 'Dictionary<TKey, TValue>'. Nullability of type argument 'T' doesn't match 'notnull' constraint.

Illegal Attribute 'ChildContent' on 'MudFileUpload' using pattern 'LowerCase' source location '(201,16)-(499,18)' (https://mudblazor.com/features/analyzers)

The variable 'warning' is assigned but its value is never used

Dereference of a possibly null reference.

'MudFileUpload<IBrowserFile>.InputStyle' is obsolete: 'Prefer the InputClass property with CSS https://github.com/MudBlazor/MudBlazor/issues/12047'

Found markup element with unexpected name 'ActivatorContent'. If this is intended to be a component, add a @using directive for its namespace.

Possible null reference argument for parameter 'arg' in 'ICollection<T?> Func<ICollection<T?>, ICollection<T?>>.Invoke(ICollection<T?> arg)'.

Possible null reference argument for parameter 'arg' in 'ICollection<T?> Func<ICollection<T?>, ICollection<T?>>.Invoke(ICollection<T?> arg)'.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Nullability of reference types in type of parameter 'sender' of 'void MudWatch.Elapse(object sender, ElapsedEventArgs args)' doesn't match the target delegate 'ElapsedEventHandler' (possibly because of nullability attributes).

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

The type 'T' cannot be used as type parameter 'TKey' in the generic type or method 'Dictionary<TKey, TValue>'. Nullability of type argument 'T' doesn't match 'notnull' constraint.

The type 'T' cannot be used as type parameter 'TKey' in the generic type or method 'Dictionary<TKey, TValue>'. Nullability of type argument 'T' doesn't match 'notnull' constraint.

Back off 26.424 seconds before retry.