fix(855): Windows build

[joshuamegnauth54]

Closes: #855

The original issue mentions that several examples fail to build. They fail to build on Linux as well due to bit rot. I started fixing some of those issues until I realized that this is a larger project than I expected. 😆 So, this PR mainly fixes the Windows build.

[ti-integra]

build error

error: invalid format string: expected `}`, found `$`
   --> src\widget\header_bar.rs:428:43
    |
428 |                         "../../res/icons/{$name}.svg"
    |                                          -^ expected `}` in format string
    |                                          |
    |                                          because of this opening brace
    

the error point to here

    #[cfg(not(target_os = "linux"))]
                let icon = {
                    widget::icon::from_svg_bytes(include_bytes!(format!(
                        "../../res/icons/{$name}.svg"
                    )))
                    .symbolic(true)
                    .apply(widget::button::icon)
                    .padding(8)
                };

using this also in windows

                let icon = {
                    widget::icon::from_name($name)
                        .apply(widget::button::icon)
                        .padding(8)
                };

was able build table-view and spin-button but without icons

[joshuamegnauth54]

Sorry. I'm going to fix this today since I have time. 😁

[joshuamegnauth54]

This works now if you would like to use it before it's merged. The fix is a one-liner for the library, but I'll tackle some of the examples in another PR since it's a larger project.

[tredeneo]

I have upgrade to last commit and build table-view example without errors, with icons