Update architecture

Dockerfile

@@ -6,7 +6,7 @@ WORKDIR /app
 COPY go.mod go.sum ./
 RUN go mod download
 
-COPY main.go index.html favicon.ico ./
+COPY main.go index.html favicon.png ./
 RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o nats-ui main.go
 
 # Runtime stage

main.go

@@ -18,7 +18,7 @@ import (
     "gopkg.in/yaml.v3"
 )
 
-//go:embed index.html favicon.ico
+//go:embed index.html favicon.png
 var staticFS embed.FS
 
 var upgrader = websocket.Upgrader{
@@ -315,7 +315,7 @@ func main() {
         }()
     }
     indexHTML, _ := staticFS.ReadFile("index.html")
-    faviconICO, _ := staticFS.ReadFile("favicon.ico")
+    faviconPNG, _ := staticFS.ReadFile("favicon.png")
 
     http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
         switch r.URL.Path {
@@ -324,9 +324,9 @@ func main() {
             w.WriteHeader(http.StatusOK)
             _, _ = w.Write(indexHTML)
         case "/favicon.ico":
-            w.Header().Set("Content-Type", "image/x-icon")
+            w.Header().Set("Content-Type", "image/png")
             w.WriteHeader(http.StatusOK)
-            _, _ = w.Write(faviconICO)
+            _, _ = w.Write(faviconPNG)
         default:
             http.NotFound(w, r)
         }