Added toggle full width function

Added toggle full width function.
Added messaging service to trigger function.
Added CSS to keep login box the same size.

src/scss/styles.scss

@@ -123,6 +123,18 @@ body {
     &.layout_frontend {
         background-color: #ecf0f5;
     }
+
+    &.full-width {
+        .container {
+            min-width: 980px;
+            width: 90%;
+            .row {
+                .col-5 {
+                    max-width: 416px;
+                }
+            }
+        }
+    }
 }
 
 .page-header, .secondary-header {
@@ -192,10 +204,6 @@ input, select, textarea {
     max-width: none !important;
     margin: 0 auto;
     padding: 0;
-    &.full-width {
-        min-width: 980px;
-        width: 90%;
-    }
 }
 
 .page-content {