Fix/4929 remove unnecessary files from core build process (#6425)

* Added /assets, /packages, /patches and global.d.ts to .distignore

* re-added /assets folder

* Reverted "/packages" removal

Author: wavvves

.distignore

@@ -1,10 +1,11 @@
 /.github
 /.git
 /.wordpress-org
-/node_modules
 /.sources
 /bin
 /docs
+/node_modules
+/patches
 /storybook
 /tests
 
@@ -25,7 +26,7 @@ blocks.ini
 composer.json
 composer.lock
 docker-compose.yml
-globals.d.ts
+global.d.ts
 package.json
 package-lock.json
 phpcs.xml