Mass-replace blurb with seo:description in frontmatter

content/references/http-websocket-apis/admin-api-methods/status-and-debugging-methods/consensus_info.md

@@ -1,7 +1,8 @@
 ---
 html: consensus_info.html
 parent: status-and-debugging-methods.html
-blurb: Get information about the state of consensus as it happens.
+seo:
+    description: Get information about the state of consensus as it happens.
 labels:
   - Blockchain
   - Core Server

content/references/http-websocket-apis/admin-api-methods/status-and-debugging-methods/feature.md

@@ -1,7 +1,8 @@
 ---
 html: feature.html
 parent: status-and-debugging-methods.html
-blurb: Get information about protocol amendments.
+seo:
+    description: Get information about protocol amendments.
 labels:
   - Blockchain
   - Core Server

content/references/http-websocket-apis/admin-api-methods/status-and-debugging-methods/fetch_info.md

@@ -1,7 +1,8 @@
 ---
 html: fetch_info.html
 parent: status-and-debugging-methods.html
-blurb: Get information about the server's sync with the network.
+seo:
+    description: Get information about the server's sync with the network.
 labels:
   - Core Server
 ---

content/references/http-websocket-apis/admin-api-methods/status-and-debugging-methods/get_counts.md

@@ -1,7 +1,8 @@
 ---
 html: get_counts.html
 parent: status-and-debugging-methods.html
-blurb: Get statistics about the server's internals and memory usage.
+seo:
+    description: Get statistics about the server's internals and memory usage.
 labels:
   - Core Server
 ---

content/references/http-websocket-apis/admin-api-methods/status-and-debugging-methods/print.md

@@ -1,7 +1,8 @@
 ---
 html: print.html
 parent: status-and-debugging-methods.html
-blurb: Get information about internal subsystems.
+seo:
+    description: Get information about internal subsystems.
 labels:
   - Core Server
 ---

content/references/http-websocket-apis/admin-api-methods/status-and-debugging-methods/validator_info.md

@@ -1,7 +1,8 @@
 ---
 html: validator_info.html
 parent: status-and-debugging-methods.html
-blurb: Get the server's validation settings, if configured as a validator.
+seo:
+    description: Get the server's validation settings, if configured as a validator.
 labels:
   - コアサーバー
   - ブロックチェーン

content/references/http-websocket-apis/admin-api-methods/status-and-debugging-methods/validator_list_sites.md

@@ -1,7 +1,8 @@
 ---
 html: validator_list_sites.html
 parent: status-and-debugging-methods.html
-blurb: Get information about sites that publish validator lists.
+seo:
+    description: Get information about sites that publish validator lists.
 labels:
   - Core Server
   - Blockchain

content/references/http-websocket-apis/admin-api-methods/status-and-debugging-methods/validators.md

@@ -1,7 +1,8 @@
 ---
 html: validators.html
 parent: status-and-debugging-methods.html
-blurb: Get information about the current validators.
+seo:
+    description: Get information about the current validators.
 labels:
   - Core Server
   - Blockchain