fix accessibility errors

Update .frontmatter_check to check the `_posts` directory
Moves the script to change the title for join_us.html at the end of the
section
Adds the layout to the baovola post

Author: kjaymiller

.frontmatter_check.yaml

@@ -1,7 +1,7 @@
 # Pattern-specific rules
 patterns:
   - name: "Global Defaults"
-    pattern: "blog./*.md" # match ALL `.md` files
+    pattern: "_posts./*.md" # match ALL `.md` files
     rules:
       - field_name: date
       - field_name: description

_includes/join_us.html

@@ -27,15 +27,6 @@ <h2>Support Black Python Devs</h2>
             script.id = "commitchange-script";
             script.src = "https://us.commitchange.com/js/donate-button.v2.js";
 
-            script.onload = function () {
-              const observer = new MutationObserver(function (mutations) {
-                const iframe = document.querySelector(".commitchange-iframe-embedded");
-                if (iframe && !iframe.hasAttribute("title")) {
-                  iframe.setAttribute("title", "Donation form for Black Python Devs");
-                  observer.disconnect(); // Stop observing once we've set the title
-                }
-              });
-
               observer.observe(document.body, { childList: true, subtree: true });
             };
 
@@ -85,3 +76,11 @@ <h3>Corporate Sponsors</h3>
     </div>
   </section>
 </div>
+<script>
+  const observer = new MutationObserver(function (mutations) {
+    const iframe = document.querySelector(".commitchange-iframe-embedded");
+    if (iframe && !iframe.hasAttribute("title")) {
+      iframe.setAttribute("title", "Donation form for Black Python Devs");
+      observer.disconnect(); // Stop observing once we've set the title
+    }
+</script>

_posts/2025-04-28-baovola-marie-anna-added-to-bpd-council.md

@@ -2,6 +2,8 @@
 title: BAOVOLA Marie Anna Added to BPD Council
 date: 2025-04-28
 author: Jay Miller
+layout: post
+lang: en
 description: The BPD Council has recognized the work of BAOVOLA Marie Anna and invited her to join the Council.
 featured_image: /assets/images/baovola-jay-pg-day-chi-2025.webp
 ---