Bump version to 1.0.3

webui: use fs.Sub to fix embed FS root so static assets are found

Previously http.FileServer searched for assets/foo.css in the embed FS
rooted at dist/, but only paths starting with dist/ resolve. fs.Sub
strips the dist/ prefix so FileServer finds the actual files.

internal/webui/embed.go

@@ -9,15 +9,19 @@ import (
 //go:embed dist
 var DistFS embed.FS
 
-var Dist fs.FS = DistFS
+var distSub, _ = fs.Sub(DistFS, "dist")
 
 func ServeHTTP() http.Handler {
-	return http.FileServer(http.FS(DistFS))
+	return http.FileServer(http.FS(distSub))
 }
 
 func ServeSPA() http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		path := r.URL.Path
+		if path == "/favicon.ico" {
+			w.WriteHeader(http.StatusNoContent)
+			return
+		}
 		if path == "/" || !isStaticAsset(path) {
 			data, err := DistFS.ReadFile("dist/index.html")
 			if err != nil {
@@ -28,7 +32,7 @@ func ServeSPA() http.Handler {
 			w.Write(data)
 			return
 		}
-		http.StripPrefix("/", http.FileServer(http.FS(DistFS))).ServeHTTP(w, r)
+		http.FileServer(http.FS(distSub)).ServeHTTP(w, r)
 	})
 }