add templates error and setup

public/templates/error/error.html

@@ -0,0 +1 @@
+<h1>%error%</h1>

public/templates/setup/setup.html

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Setup</title>
+</head>
+<body>
+    <h1>La setup</h1>
+</body>
+</html>

public/templates/templates.json

@@ -1,20 +1,18 @@
 {
-    "templates":[
-        {
-            "name":"error",
-            "dir_name":"error",
-            "html_file":"error.html",
-            "css_files":[
-                "error.css"
-            ]
-        },
-        {
-            "name":"setup",
-            "dir_name":"setup",
-            "html_file":"setup.html",
-            "css_files":[
-                "setup.css"
-            ]
-        }
-    ]
+    "error":{
+        "name":"error",
+        "dir_name":"error",
+        "html_file":"error.html",
+        "css_files":[
+            "error.css"
+        ]
+    },
+    "setup":{
+        "name":"setup",
+        "dir_name":"setup",
+        "html_file":"setup.html",
+        "css_files":[
+            "setup.css"
+        ]
+    }
 }