Cleanup for maintainability + couple bug fixes - #99

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/setup-dotnet@v4, actions/upload-artifact@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Illegal Attribute 'Title' on 'MudIconButton' using pattern 'LowerCase' source location '(344,12)-(344,74)' (https://mudblazor.com/features/analyzers)

Illegal Attribute 'Title' on 'MudButton' using pattern 'LowerCase' source location '(919,12)-(919,83)' (https://mudblazor.com/features/analyzers)

The field 'ProjectExplorer.HoveredClass' is assigned but its value is never used

'IDialogService.Show<TComponent>(string?, DialogParameters, DialogOptions?)' is obsolete: 'Use ShowAsync instead. This will be removed in future major version.'

'IDialogService.Show<TComponent>(string?, DialogParameters, DialogOptions?)' is obsolete: 'Use ShowAsync instead. This will be removed in future major version.'

'IDialogService.Show<TComponent>(string?, DialogParameters, DialogOptions?)' is obsolete: 'Use ShowAsync instead. This will be removed in future major version.'

'IDialogService.Show<TComponent>(string?, DialogParameters, DialogOptions?)' is obsolete: 'Use ShowAsync instead. This will be removed in future major version.'

'IDialogService.Show<TComponent>(string?, DialogParameters, DialogOptions?)' is obsolete: 'Use ShowAsync instead. This will be removed in future major version.'

'IDialogService.Show<TComponent>(string?, DialogParameters, DialogOptions?)' is obsolete: 'Use ShowAsync instead. This will be removed in future major version.'