Move filter_interactive_steps to frontmatter

Requires Dactyl v0.13.2 or higher. Otherwise you'll get a "start_step()
is not defined" error.

content/tutorials/get-started/monitor-incoming-payments-with-websocket.ja.md

@@ -1,3 +1,12 @@
+---
+html: monitor-incoming-payments-with-websocket.html
+funnel: Build
+doc_type: Tutorials
+category: Get Started
+blurb: WebSocket APIを使用して、新しいXRPペイメントなどを積極的に監視します。
+filters:
+    - interactive_steps
+---
 # WebSocketを使用した着信ペイメントの監視
 
 このチュートリアルでは、[WebSocket `rippled` API](rippled-api.html)を使用して、着信[ペイメント](payment-types.html)を監視する方法を説明します。すべてのXRP Ledgerトランザクションは公開されているため、誰もが任意のアドレスへの着信ペイメントを監視できます。

content/tutorials/get-started/monitor-incoming-payments-with-websocket.md

@@ -1,3 +1,12 @@
+---
+html: monitor-incoming-payments-with-websocket.html
+funnel: Build
+doc_type: Tutorials
+category: Get Started
+blurb: Use the WebSocket API to actively monitor for new XRP payments (and more).
+filters:
+    - interactive_steps
+---
 # Monitor Incoming Payments with WebSocket
 
 This tutorial shows how to monitor for incoming [payments](payment-types.html) using the [WebSocket `rippled` API](rippled-api.html). Since all XRP Ledger transactions are public, anyone can monitor incoming payments to any address.

content/tutorials/use-simple-xrp-payments/send-xrp.ja.md

@@ -5,6 +5,8 @@ doc_type: Tutorials
 category: Get Started
 blurb: Test Netを使用してXRPの送金をテストします。
 cta_text: XRPを送金しよう
+filters:
+    - interactive_steps
 ---
 # XRPの送金
 

content/tutorials/use-simple-xrp-payments/send-xrp.md

@@ -5,6 +5,8 @@ doc_type: Tutorials
 category: Get Started
 blurb: Learn how to send test payments right from your browser.
 cta_text: Send XRP
+filters:
+    - interactive_steps
 ---
 # Send XRP