Add property tests for WP_Token_Map

Gruntfile.js

@@ -2370,7 +2370,7 @@ module.exports = function(grunt) {
 
 	grunt.registerTask( 'browserslist:update', 'Update the local database of browser supports', function() {
 		grunt.log.writeln( `Updating browsers list` );
-		spawn( 'npx', [ 'browserslist@latest', '--update-db' ], {
+		spawn( 'npx', [ 'update-browserslist-db@latest' ], {
 			cwd: __dirname,
 			stdio: 'inherit',
 		} );

README.md

@@ -39,9 +39,9 @@ You can get started using the local development environment with these steps:
 1. Then clone the forked repository to your computer using `git clone https://github.com/<your-username>/wordpress-develop.git`.
 1. Navigate into the directory for the cloned repository using `cd wordpress-develop`.
 1. Add the origin repo as an `upstream` remote via `git remote add upstream https://github.com/WordPress/wordpress-develop.git`.
-1. Then you can keep your branches up to date via `git pull --ff upstream/trunk`, for example.
+1. Then you can keep your branches up to date via `git pull --ff upstream trunk`, for example.
 
-Alternatively, if you have the [GitHub CLI](https://cli.github.com/) installed, you can simply run `gh repo fork WordPress/wordpress-develop --clone --remote` ([docs](https://cli.github.com/manual/gh_repo_fork)). This command will:
+Alternatively, if you have the [GitHub CLI](https://cli.github.com/) installed, you can simply run `gh repo fork WordPress/wordpress-develop --clone` ([docs](https://cli.github.com/manual/gh_repo_fork)). This command will:
 1. Fork the repository to your account (use the `--org` flag to clone into an organization).
 1. Clone the repository to your machine. 
 1. Add `WordPress/wordpress-develop` as `upstream` and set it to the default `remote` repository

src/wp-admin/css/admin-menu.css

@@ -417,6 +417,10 @@ ul#adminmenu > li.current > a.current:after {
 	border-color: transparent;
 }
 
+.js #adminmenu .wp-submenu .wp-submenu-head {
+	cursor: pointer;
+}
+
 #adminmenu li.current,
 .folded #adminmenu li.wp-menu-open {
 	border: 0 none;