Improve & refactor interactive tutorial code

Interactive tutorials: more consistent style

Interactive tutorials: Use new generics for send-xrp, use-tickets

Interactive tutorials: clean up now-unused code

Interactive tutorials: progress & debugging of errors

Interactive: Require Destination Tags; and related

- Validate addresses in Transaction Sender and warn on Mainnet X-address
- Option to load destination address from query param in Tx Sender
- Some more/updated helpers in interactive tutorial JS

Interactive tutorials: fix JA version

Interactive tutorials: readme, include code filter (incomplete)

Interactive tutorials: improvements for consistency

Interactive Tutorials: finish readme

Interactive tutorials: fix syntax errors

content/_snippets/interactive-tutorials/wait-step.md

@@ -0,0 +1,27 @@
+{% if use_network is undefined or use_network == "Testnet" %}
+  {% set explorer_url = "https://testnet.xrpl.org" %}
+{% elif use_network == "Devnet" %}
+  {% set explorer_url = "https://devnet.xrpl.org" %}
+{% elif use_network == "Mainnet" %}
+  {% set explorer_url = "https://livenet.xrpl.org" %}
+{% endif %}
+
+<table class="wait-step" data-explorerurl="{{explorer_url}}">
+  <tr>
+    <th>Transaction ID:</th>
+    <td class="waiting-for-tx">(None)</td>
+  <tr>
+    <th>Latest Validated Ledger Index:</th>
+    <td class="validated-ledger-version">(Not connected)</td>
+  </tr>
+  <tr>
+    <th>Ledger Index at Time of Submission:</th>
+    <td class="earliest-ledger-version">(Not submitted)</td>
+  </tr>
+  <tr>
+    <th>Transaction <code>LastLedgerSequence</code>:</th>
+    <td class="lastledgersequence">(Not prepared)</td>
+  </tr>
+  <tr class="tx-validation-status">
+  </tr>
+</table>