Renaming KV Changelog to KV Release notes (#20715)

Author: Oxyjun

public/_redirects

@@ -1652,6 +1652,7 @@
 # workers KV
 /kv/platform/environments/ /kv/reference/environments/ 301
 /kv/platform/kv-commands/ /kv/reference/kv-commands/ 301
+/kv/platform/changelog/ /kv/platform/release-notes/ 301
 /kv/learning/ /kv/reference/ 301
 /kv/learning/how-kv-works/ /kv/concepts/how-kv-works/ 301
 /kv/learning/kv-bindings/ /kv/concepts/kv-bindings/ 301

src/content/docs/kv/platform/changelog.mdx renamed to src/content/docs/kv/platform/release-notes.mdx

@@ -1,6 +1,6 @@
 ---
 pcx_content_type: changelog
-title: Changelog
+title: Release notes
 sidebar:
   order: 8
 release_notes_file_name:

src/content/release-notes/kv.yaml

@@ -1,5 +1,5 @@
 ---
-link: "/kv/platform/changelog/"
+link: "/kv/platform/release-notes/"
 productName: Workers KV
 productLink: "/kv/"
 productArea: Developer platform