Use source generation for INotifyPropertyChanging/Changed

[VMelnalksnis]

Changes proposed in this pull request:

• Use source generator for INotifyPropertyChanged
• Extract remaining common properties for UpsertionViewModel
• Refactor remaining unit view models
• Use DI where possible for view models
• Remove .dll, .exe and appsettings.json instead of all files on install/uninstall

[codecov]

Codecov Report

Merging #679 (c607d28) into master (b9c8770) will increase coverage by 4.13%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #679      +/-   ##
==========================================
+ Coverage   69.19%   73.32%   +4.13%     
==========================================
  Files         304      212      -92     
  Lines        9216     6134    -3082     
  Branches      683      359     -324     
==========================================
- Hits         6377     4498    -1879     
+ Misses       2584     1477    -1107     
+ Partials      255      159      -96     

Impacted Files	Coverage Δ
...shade.Avalonia.Core/Accounts/AccountOverviewRow.cs
...valonia.Core/Accounts/AccountUpsertionViewModel.cs
...ade.Avalonia.Core/Authentication/LoginViewModel.cs
...valonia.Core/Configuration/PreferencesViewModel.cs
....Core/Counterparties/CounterpartyMergeViewModel.cs
...de.Avalonia.Core/Counterparties/CounterpartyRow.cs
...e/Counterparties/CounterpartyUpsertionViewModel.cs
...meshade.Avalonia.Core/DesignTime/DesignTimeData.cs
...nomeshade.Avalonia.Core/Imports/ImportViewModel.cs
...ce/Gnomeshade.Avalonia.Core/MainWindowViewModel.cs
... and 82 more

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