Fix emoji rendering in MINGW64 terminals.

[fuseraft]

We need to change console I/O encoding to UTF-8.

[nightt5879]

Opened draft PR #8 for this issue: #8

It configures Windows console input/output encoding to UTF-8 at CLI startup. Verification passed with dotnet test and dotnet run --project src\FuseraftCli.csproj -- --version.

[fuseraft]

@nightt5879 Looks good but please see my comment on your PR.