feat(logging): add Serilog for enhanced logging capabilities

[realybin]

Updated Directory.Packages.props and SketchNow.csproj to include new package references for Microsoft.Extensions.Logging and Serilog. Modified App.xaml.cs to configure logging services and handle unhandled exceptions with Serilog. Added appsettings.json for logging configuration, specifying minimum logging level and file sink settings.

[github-actions]

Summary - Code Coverage

Summary

Generated on:	2/19/2025 - 4:04:09 PM
Coverage date:	2/19/2025 - 4:04:06 PM
Parser:	Cobertura
Assemblies:	1
Classes:	20
Files:	28
Line coverage:	17.8% (80 of 447)
Covered lines:	80
Uncovered lines:	367
Coverable lines:	447
Total lines:	2121
Branch coverage:	18.7% (15 of 80)
Covered branches:	15
Total branches:	80
Method coverage:	Feature is only available for sponsors
Tag:	127_13416959704

Coverage

SketchNow - 17.8%

Name	Line	Branch
SketchNow	17.8%	18.7%
SketchNow.App	0%	0%
SketchNow.Controls.CustomInkCanvas	0%
SketchNow.Controls.IconWithText	0%	0%
SketchNow.Converters.ColorToBrushConverter	0%	0%
SketchNow.Converters.DivisionMathConverter	0%	0%
SketchNow.Converters.EnumToIndexConverter	0%	0%
SketchNow.Input.StylusPlugIns.CustomStylusPlugin	0%
SketchNow.MainWindow	0%	0%
SketchNow.Models.CanvasPage	32.3%	25%
SketchNow.Models.CanvasPages	35.2%
SketchNow.Models.CursorNotFoundException	0%
SketchNow.Models.CustomCursors	100%	50%
SketchNow.Models.Settings	0%
SketchNow.Properties.Resource	0%	0%
SketchNow.Properties.Settings	35.2%
SketchNow.ViewModels.MainWindowViewModel	65.7%	37.5%
SketchNow.ViewModels.SettingsViewModel	0%	0%
SketchNow.Views.PageNavigationView	0%	0%
SketchNow.Views.SettingsView	0%	0%
SketchNow.Views.ToolBarView	0%	0%