restructured and refactored codebase

For better code organisation the entire Codebase has been restructured and cleaned up. handlers have been separated into an own package, as well as the model.

handlers/about_handler.go

@@ -0,0 +1,26 @@
+package handlers
+
+import (
+	"embed"
+	"html/template"
+	"log"
+	"net/http"
+)
+
+func AboutHandler(content embed.FS) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		tmpl, err := template.ParseFS(content, "templates/base.html", "templates/header.html", "templates/main.html", "templates/footer.html", "templates/about.html")
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		err = tmpl.ExecuteTemplate(w, "about", map[string]interface{}{
+			"Title": "Dungeons & Dragons Monster Generator",
+		})
+		if err != nil {
+			log.Printf("Template execution error: %v\n", err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+		}
+	}
+}