Add PoS page

Author: sha-265

source/pos.md

@@ -0,0 +1,23 @@
+---
+permalink: pos/
+layout: false
+web-app: true
+---
+
+<div id="pos">
+  <button onclick="document.getElementById('btcpay').src = document.getElementById('btcpay').src ;">&#215;</button>
+  <iframe id="btcpay" src='https://btcpay.ln.bitembassy.org/apps/2w7eTJeYtZKT5irjaMJvFrroJmCk/pos/static' style='width: 100%; height: 100%; border: 0;'></iframe>
+</div>
+
+<style>
+  #pos > button {
+    position:fixed;
+    left: 35px;
+    top:35px;
+    border-radius:50px;
+    border: 0;
+    width:48px;
+    height:48px;
+    font-size: 20;
+  }
+</style>

themes/landscape/layout/layout.pug

@@ -13,6 +13,9 @@ head
 
   if page.description || config.description
     meta(name='description' content=page.description || config.description)
+  
+  if page.web_app
+    meta(name="mobile-web-app-capable", content="yes")
 
   meta(property='og:site_name', content=config.title)