Added PRG banner color and animation to alert me that I'm on production env.

PRD banner.css

@@ -0,0 +1,17 @@
+@-moz-document domain("stream.alkemics.com") {
+    .Navbar {
+        animation-duration: 3s;
+        animation-name: slidein;
+        animation-iteration-count: infinite;
+        animation-direction: alternate;
+    }
+    @keyframes slidein {
+        from {
+            background-color: black;
+        }
+
+        to {
+            background-color: rgb(30, 180, 155);
+        }
+    }
+}