Fix Navigation menu for mobile (#32)

Author: petro97

src/Navigation.scss

@@ -132,6 +132,8 @@
 
     &.--showmodal {
       display: inline-block;
+      position: absolute;
+      overflow: auto;
     }
 
     &__categories {
@@ -148,15 +150,16 @@
         position: absolute;
         left: 16px;
         top: 12px;
-        width: 30px;
+        width: 100%;
         height: 30px;
-        padding: 3px 0 0 20px;
+        padding-left: 20px;
         color: $firstComplimentColor;
+        align-items: center;
 
         &:after {
           position: absolute;
           left: 7px;
-          top: 8px;
+          top: 9px;
           content: ' ';
           width: 11px;
           height: 11px;