update structure of composer.json and update dependencies

composer.json

@@ -1,36 +1,49 @@
 {
     "name": "digicomp/menu",
-    "type": "neos-package",
     "description": "Helps with the creation of simple fluid based menus",
+    "type": "neos-package",
     "keywords": [
-        "flow",
+        "Neos",
-        "neos",
+        "Flow",
         "menu"
     ],
+    "homepage": "https://git.digital-competence.de/Packages/DigiComp.Menu",
+    "license": "MIT",
     "authors": [
         {
             "name": "Ferdinand Kuhl",
             "email": "f.kuhl@digital-competence.de",
-            "homepage": "http://www.digital-competence.de",
+            "homepage": "https://www.digital-competence.de",
             "role": "Developer"
         }
     ],
-    "license": "MIT",
-    "homepage": "https://github.com/digicomp/DigiComp.Menu",
     "require": {
-        "neos/flow": "~6.3",
+        "php": ">=7.4.0",
-        "php": "^7.4"
+        "neos/flow": "^6.3.21"
+    },
+    "require-dev": {
+        "mikey179/vfsstream": "^1.6.1",
+        "neos/buildessentials": "^7.0.0",
+        "phpunit/phpunit": "~8.5",
+        "vimeo/psalm": "~4.22.0"
     },
     "autoload": {
         "psr-4": {
-            "DigiComp\\Menu\\": "Classes"
+            "DigiComp\\Menu\\": "Classes/"
         }
     },
+    "config": {
+        "sort-packages": true,
+        "platform-check": true
+    },
     "extra": {
         "branch-alias": {
             "dev-develop": "3.0.x-dev",
             "dev-version/2.x-dev": "2.0.x-dev"
         },
+        "neos": {
+            "package-key": "DigiComp.Menu"
+        },
         "applied-flow-migrations": [
             "TYPO3.Fluid-20150214130800",
             "TYPO3.Fluid-20141121091700",