diff --git a/composer.json b/composer.json
index 6a783d1..3452e51 100644
--- a/composer.json
+++ b/composer.json
@@ -6,37 +6,30 @@
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 		"ext-ctype" : "*",
 		"ext-iconv" : "*",
-		"sensio/framework-extra-bundle" : "^5.1",
+		"ext-json" : "*",
+		"sensio/framework-extra-bundle" : "^5.6",
+		"symfony/apache-pack" : "^1.0",
 		"symfony/console" : "^5.2",
-		"symfony/dotenv" : "5.2.*",
-		"symfony/expression-language" : "5.2.*",
-		"symfony/flex" : "^1.3.1",
-		"symfony/form" : "5.2.*",
-		"symfony/framework-bundle" : "5.2.*",
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-		"symfony/intl" : "5.2.*",
-		"symfony/mime" : "5.2.*",
-		"symfony/monolog-bundle" : "^3.1",
-		"symfony/notifier" : "5.2.*",
-		"symfony/process" : "5.2.*",
-		"symfony/property-access" : "5.2.*",
-		"symfony/property-info" : "5.2.*",
-		"symfony/proxy-manager-bridge" : "5.2.*",
-		"symfony/security-bundle" : "5.2.*",
-		"symfony/serializer" : "5.2.*",
-		"symfony/string" : "5.2.*",
-		"symfony/translation" : "5.2.*",
+		"symfony/dotenv" : "^5.2",
+		"symfony/expression-language" : "^5.2",
+		"symfony/form" : "^5.2",
+		"symfony/framework-bundle" : "^5.2",
+		"symfony/http-client" : "^5.2",
+		"symfony/intl" : "^5.2",
+		"symfony/monolog-bundle" : "^3.6",
+		"symfony/orm-pack" : "^2.0",
+		"symfony/process" : "^5.2",
+		"symfony/security-bundle" : "^5.2",
+		"symfony/serializer-pack" : "^1.0",
+		"symfony/translation" : "^5.2",
 		"symfony/twig-bundle" : "^5.2",
-		"symfony/validator" : "5.2.*",
-		"symfony/web-link" : "5.2.*",
-		"symfony/yaml" : "5.2.*",
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-		"twig/twig" : "^2.12|^3.0",
-		"symfony/orm-pack" : "^2.1",
-		"symfony/apache-pack" : "^1.0"
+		"symfony/validator" : "^5.2",
+		"symfony/web-link" : "^5.2",
+		"symfony/yaml" : "^5.2",
+		"twig/extra-bundle" : "^3.1"
 	},
 	"require-dev" : {
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diff --git a/composer.lock b/composer.lock
index a0f338b..6cd0276 100644
--- a/composer.lock
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+            "authors": [
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+            "description": "A PSR-5 based resolver of Class names, Types and Structural Element Names",
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+                "source": "https://github.com/phpDocumentor/TypeResolver/tree/1.4.0"
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@@ -3249,74 +3407,6 @@
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@@ -4004,88 +4094,6 @@
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@@ -4249,90 +4257,6 @@
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@@ -4617,93 +4541,6 @@
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@@ -5931,6 +5768,53 @@
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+            "support": {
+                "issues": "https://github.com/symfony/serializer-pack/issues",
+                "source": "https://github.com/symfony/serializer-pack/tree/v1.0.4"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2020-10-19T08:52:16+00:00"
+        },
+        {
             "name": "symfony/service-contracts",
             "version": "v2.2.0",
             "source": {
@@ -7118,6 +7002,59 @@
                 }
             ],
             "time": "2021-01-05T15:40:36+00:00"
+        },
+        {
+            "name": "webmozart/assert",
+            "version": "1.9.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/webmozarts/assert.git",
+                "reference": "bafc69caeb4d49c39fd0779086c03a3738cbb389"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/webmozarts/assert/zipball/bafc69caeb4d49c39fd0779086c03a3738cbb389",
+                "reference": "bafc69caeb4d49c39fd0779086c03a3738cbb389",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.3.3 || ^7.0 || ^8.0",
+                "symfony/polyfill-ctype": "^1.8"
+            },
+            "conflict": {
+                "phpstan/phpstan": "<0.12.20",
+                "vimeo/psalm": "<3.9.1"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^4.8.36 || ^7.5.13"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Webmozart\\Assert\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Bernhard Schussek",
+                    "email": "bschussek@gmail.com"
+                }
+            ],
+            "description": "Assertions to validate method input/output with nice error messages.",
+            "keywords": [
+                "assert",
+                "check",
+                "validate"
+            ],
+            "support": {
+                "issues": "https://github.com/webmozarts/assert/issues",
+                "source": "https://github.com/webmozarts/assert/tree/1.9.1"
+            },
+            "time": "2020-07-08T17:02:28+00:00"
         }
     ],
     "packages-dev": [
@@ -7721,9 +7658,10 @@
     "prefer-stable": true,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=7.2.5",
+        "php": ">=7.3|>=8.0",
         "ext-ctype": "*",
-        "ext-iconv": "*"
+        "ext-iconv": "*",
+        "ext-json": "*"
     },
     "platform-dev": [],
     "plugin-api-version": "2.0.0"
diff --git a/config/packages/mailer.yaml b/config/packages/mailer.yaml
deleted file mode 100644
index 56a650d..0000000
--- a/config/packages/mailer.yaml
+++ /dev/null
@@ -1,3 +0,0 @@
-framework:
-    mailer:
-        dsn: '%env(MAILER_DSN)%'
diff --git a/translations/.gitignore b/translations/.gitignore
deleted file mode 100644
index e69de29..0000000
--- a/translations/.gitignore
+++ /dev/null