* Only allow to start interactive rebase from merged commit in current branch
* The order of commits in the interactive rebase window is as same as it's in histories page.
* Unlike anthor git frontend app `Fork`, you should edit the final message on the last commit rather than the previous commit that will be meld into while squashing commits
* remove dotnet-tool.json because the project does not rely on any dotnet tools.
* remove Directory.Build.props because the solution has only one project.
* move src/SourceGit to src. It's not needed to put all sources into a subfolder of src since there's only one project.
* fix Locales.Designer.cs NOT updated when compile after Locale.*.resx changed in Visual Studio 2022.
* use PublicResXFileCodeGenerator instead of ResXFileCodeGenerator to make sure access modifier is 'public' in Visual Studio 2022.
* use ResourceManager.GetResourceSet instead of collecting properties by reflection.
* remove translation warnings in Visual Studio's ResXManager extension.
