api: Route notes

src/main/java/com/maradona/backend/controllers/PageController.java

@@ -14,11 +14,16 @@ public class PageController {
 
   @GetMapping("/impressum")
   public String impressum() {
-    return "impressum";
+    return "core/impressum";
   }
 
   @GetMapping("/datenschutz")
   public String datenschutz() {
-    return "datenschutz";
+    return "core/datenschutz";
+  }
+
+  @GetMapping("/notes")
+  public String notes() {
+    return "notes/notes";
   }
 }