Build: Restore removed files from .gitignore

Author: dmsnell

.gitignore

@@ -32,15 +32,16 @@ wp-tests-config.php
 /src/wp-admin/css/colors/*/*.css
 /src/wp-admin/js
 /src/wp-includes/assets/*
+!/src/wp-includes/assets/script-loader-packages.min.php
+!/src/wp-includes/assets/script-modules-packages.min.php
 /src/wp-includes/js
 /src/wp-includes/css/dist
 /src/wp-includes/css/*.min.css
 /src/wp-includes/css/*-rtl.css
-/src/wp-includes/blocks/*
-!/src/wp-includes/blocks/index.php
-/src/wp-includes/icons
+/src/wp-includes/blocks/**/*.css
+/src/wp-includes/blocks/**/*.js
+/src/wp-includes/blocks/**/*.js.map
 /src/wp-includes/build
-/src/wp-includes/theme.json
 /packagehash.txt
 /.gutenberg-hash
 /artifacts