Credits: Fix Footer under the globe

Added a z-index on the main (now with a class for specificity) to go over the canvas

src/style/layouts/_main.scss

@@ -1,7 +1,6 @@
 // Main page
 .housesof {
     position: absolute;
-    z-index: 120;
     top: 0;
     left: 0;
     width: 100%;

src/style/pages/_page.scss

@@ -95,4 +95,12 @@
             margin-top: 136px;
         }
     }
-}
+
+
+    /*
+    ** Credit page
+    */
+    &--credits {
+        z-index: 120;
+    }
+}