add created, updated field to db && improve graph design

src/Jotunheimr/UserBundle/Resources/public/css/layout.css

@@ -153,9 +153,23 @@ header section h3.or {
 }
 
 header section #id_welcome {
+    display: flex;
+    flex-direction: row;
     margin-bottom: 115px;
 }
 
+header section #id_welcome > div {
+    padding-right: 20px;
+}
+
+header section #id_welcome img {
+    width: 100px;
+    border: 5px solid #414040;
+
+    -webkit-border-radius: 50%;
+    border-radius: 50%;
+}
+
 header section .buttons,
 header section form {
     z-index: 2;
@@ -307,6 +321,12 @@ footer nav ul li a:hover {
 }
 
 @media screen and (max-width: 1100px) {
+    header section #id_welcome {
+        align-items: center;
+        justify-content: center;
+        margin-top: 50px;
+    }
+
     header section .form-input,
     header section .form-check {
         margin-left: auto;
@@ -325,9 +345,17 @@ footer nav ul li a:hover {
     header section div.buttons > a.slack-login {
         margin: 0 auto;
     }
+
+    main div.txt {
+        padding: 0 20px;
+    }
 }
 
 @media screen and (max-width: 550px) {
+    header section #id_welcome {
+        display: block;
+    }
+
     header section {
         padding: 20px;
     }