support theme options via user preferences #89 (#91)

composer.json

@@ -6,7 +6,7 @@
     "require": {
         "php": "^7.1.3",
         "ext-pdo_sqlite": "*",
-        "avanzu/admin-theme-bundle": "dev-symfony4",
+        "avanzu/admin-theme-bundle": "dev-kevinpapst",
         "beberlei/DoctrineExtensions": "^1.0",
         "dama/doctrine-test-bundle": "^4.0",
         "sensio/framework-extra-bundle": "^5.1",
@@ -23,6 +23,7 @@
         "symfony/security-bundle": "^4.0",
         "symfony/security-csrf": "^4.0",
         "symfony/swiftmailer-bundle": "^3.1",
+        "symfony/thanks": "^1.0",
         "symfony/translation": "^4.0",
         "symfony/twig-bundle": "^4.0",
         "symfony/validator": "^4.0",