Integrates Codef Library

* Adds StarField & 3D Lines
* Style fixes to accommodate canvas
* Adds Canvas container

Signed-off-by: Indrajith K L <mac91112@gmail.com>

hg.css

@@ -50,6 +50,7 @@ body {
     text-align: center;
     background-position: 50% 50%;
     background-repeat: no-repeat;
+    z-index: 999;
 }
 
 .music-player .color-overlay {
@@ -250,4 +251,9 @@ dialog::backdrop {
     padding-left: 10px;
     color: #ffffff;
     justify-content: center;
+}
+
+#codef-canvas canvas {
+    position: absolute;
+    top: 0;
 }