Refactor responsive UI and build metadata

build.rs

@@ -0,0 +1,18 @@
+use std::process::Command;
+
+fn main() {
+    println!("cargo:rerun-if-changed=.git/HEAD");
+    println!("cargo:rerun-if-changed=.git/refs");
+
+    if let Ok(output) = Command::new("git")
+        .args(["rev-parse", "--short=12", "HEAD"])
+        .output()
+    {
+        if output.status.success() {
+            let commit = String::from_utf8_lossy(&output.stdout).trim().to_string();
+            if !commit.is_empty() {
+                println!("cargo:rustc-env=BZOD_GIT_COMMIT={commit}");
+            }
+        }
+    }
+}