32-bit windows VST plugin host fails to compile on WoW64 wine

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### System Information

Arch Linux 6.16.3 and 6.15.4, probably a little earlier too

### LMMS Version(s)

any (tested with fbac56fdccc615b4efbd43dcb0a45a748e588838 and 344fdd5b1f228117a2587df3e3e833918e525a0f)

### Bug Summary

since arch updated to wine with WoW64, RemoteVstPlugin32 hasn't been able to build.

```
* VST plugin host : OK
* 32-bit Windows host : winegcc fails to compile 32-bit binaries, please make sure you have 32-bit GCC libraries
* 64-bit Windows host : OK
```

both `lib32-clang` and `lib32-gcc-libs` are installed, tested with gcc 15.1.1 ([log](https://github.com/user-attachments/files/21237781/cmake_gcc.log)), clang 20.1.7 ([log](https://github.com/user-attachments/files/21237782/cmake_clang.log)) and clang 20.1.8.

I also removed ERROR_QUIET from cmake/modules/CheckWineGcc.cmake:27 and it gave me this output:

error logs

/usr/bin/ld: cannot find -ladvapi32: No such file or directory

/usr/bin/ld: cannot find -luser32: No such file or directory

/usr/bin/ld: cannot find -lwinecrt0: No such file or directory

/usr/bin/ld: cannot find -lkernel32: No such file or directory

/usr/bin/ld: cannot find -lntdll: No such file or directory

/usr/bin/ld: skipping incompatible /usr/lib/libstdc++.so when searching for -lstdc++

/usr/bin/ld: skipping incompatible /usr/lib/libstdc++.a when searching for -lstdc++

/usr/bin/ld: skipping incompatible /usr/lib/libm.so when searching for -lm

/usr/bin/ld: skipping incompatible /usr/lib/libm.a when searching for -lm

/usr/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc

/usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc

collect2: error: ld returned 1 exit status

winegcc: /usr/bin/g++ failed

seeing the wine_64_flags, I looked into `/usr/lib/wine/` and indeed there was `i386-unix` with nothing inside. Trying to look for a package that contains `/usr/lib/wine/i386-unix/advapi32.a` yielded no results.

After building, trying to open e.g. mda Piano in vestige yields the error `Remote plugin '/data/diyfs/lmms/build/plugins/32/RemoteVstPlugin32' not found` in stderr, which makes sense.

### Expected Behaviour

RemoteVstPlugin32 should build, allowing 32-bit VSTs to be loaded

### Steps To Reproduce

1. install arch (or any other distro that uses WoW64 wine)
2. try building LMMS
3. profit?

### Please search the issue tracker for existing bug reports before submitting your own.

- [x] I have searched all existing issues and confirmed that this is not a duplicate.

Start with cmake/modules/CheckWineGcc.cmake at line 27 and inspect how the winegcc 32-bit compiler check is configured for WoW64. Reproduce the failure on Arch Linux with the reported 32-bit GCC or Clang libraries and review the linked compiler logs. Done means the build produces plugins/32/RemoteVstPlugin32 and 32-bit VSTs can be loaded.

Written by the indexing model from the issue text.