Fix icon size on Windows (#34277)

Closes #34122

Release Notes:

- N/A

crates/zed/build.rs

@@ -50,12 +50,12 @@ fn main() {
             println!("cargo:rustc-link-arg=/stack:{}", 8 * 1024 * 1024);
         }
 
-        let release_channel = option_env!("RELEASE_CHANNEL").unwrap_or("nightly");
-
+        let release_channel = option_env!("RELEASE_CHANNEL").unwrap_or("dev");
         let icon = match release_channel {
             "stable" => "resources/windows/app-icon.ico",
             "preview" => "resources/windows/app-icon-preview.ico",
             "nightly" => "resources/windows/app-icon-nightly.ico",
+            "dev" => "resources/windows/app-icon-dev.ico",
             _ => "resources/windows/app-icon-dev.ico",
         };
         let icon = std::path::Path::new(icon);