[codex] Use wp-extensions markdown editor release

.eslintignore

@@ -8,7 +8,7 @@ packages/playground/wordpress-builds/src/wordpress
 packages/playground/wordpress-builds/public
 packages/playground/sync/src/test/wp-*
 packages/php-wasm/node/src/test/__test*
-packages/playground/cli/src/edit-markdown/vendor/php-toolkit
+packages/playground/cli/src/edit-markdown/wp-markdown-editor
 *.timestamp-1678999213403.mjs
 .local
 .vscode

.gitignore

@@ -72,6 +72,10 @@ php.js.bak
 # we do not want to commit it to the repository.
 packages/php-wasm/cli/src/ca-bundle.crt
 
+# Downloaded from adamziel/wp-extensions by playground-cli's build.
+packages/playground/cli/src/edit-markdown/wp-markdown-editor/
+packages/playground/cli/src/edit-markdown/.tmp/
+
 # PHPUnit
 .phpunit.result.cache
 

.gitmodules

@@ -1,6 +1,3 @@
 [submodule "isomorphic-git"]
     path="isomorphic-git"
     url=https://github.com/adamziel/isomorphic-git.git
-[submodule "packages/playground/cli/src/edit-markdown/vendor/php-toolkit"]
-	path = packages/playground/cli/src/edit-markdown/vendor/php-toolkit
-	url = https://github.com/WordPress/php-toolkit.git