fix sidebar generated links

Author: taroface

src/current/_data/redirects.yml

@@ -293,8 +293,7 @@
   sources: [':version/migrate-from-postgres.md']
 
 - destination: molt/migration-overview.md
-  sources: ['migration-overview.md']
-  versions: ['v23.1', 'v23.2', 'v24.1', 'v24.2', 'v24.3', 'v25.1', 'v25.2']
+  sources: [':version/migration-overview.md']
 
 - destination: molt/migration-overview.md
   sources: ['molt/molt-overview.md']

src/current/_includes/sidebar-data-cockroachcloud.json

@@ -134,7 +134,7 @@
       	    {
       	      "title": "Migration Overview",
       	      "urls": [
-      		      "/{{site.current_cloud_version}}/migration-overview.html"
+      		      "/molt/migration-overview.html"
       	      ]
       	    },
             {
@@ -146,13 +146,13 @@
       	    {
       	      "title": "Migrate from PostgreSQL",
       	      "urls": [
-      		      "/{{site.current_cloud_version}}/migrate-from-postgres.html"
+      		      "/molt/migrate-to-cockroachdb.html"
       	      ]
       	    },
       	    {
       	      "title": "Migrate from MySQL",
       	      "urls": [
-      		      "/{{site.current_cloud_version}}/migrate-from-mysql.html"
+      		      "/molt/migrate-to-cockroachdb.html?filters=mysql"
       	      ]
       	    },
       	    {