UI always need large file.
after downloading source file of luart, it has 80MB.
there are 45 .ico icon files, 5MB, and the largest one cardinal.ico is 188KB. sometimes an .ico file is larger than the real executable.
and the biggest 4 files are 2 wx.dll and 2 WebView2LoaderStatic.lib, both for UI. these 4 files is 40 MB, half of total.
if replaced with this little winui, it may largely decrease source size.
