itsHall

<?php
function itsme_disable_feed() {
 wp_die( __( 'No feed available, please visit the <a href="'. esc_url( home_url( '/' ) ) .'">homepage</a>!' ) );
}

add_action('do_feed', 'itsme_disable_feed', 1);
add_action('do_feed_rdf', 'itsme_disable_feed', 1);
add_action('do_feed_rss', 'itsme_disable_feed', 1);
add_action('do_feed_rss2', 'itsme_disable_feed', 1);
add_action('do_feed_atom', 'itsme_disable_feed', 1);

itsHall

<?php
function mpc_remove_wp_block_library_css(){
    wp_dequeue_style( 'wp-block-library' );
    wp_dequeue_style( 'wp-block-library-theme' );
    wp_dequeue_style( 'wc-block-style' ); // Remove WooCommerce block CSS
}
add_action( 'wp_enqueue_scripts', 'mpc_remove_wp_block_library_css', 100 );

itsHall

<?php
// Changes /s/ search path to /search/

function wpb_change_search_url() {
    if ( is_search() && ! empty( $_GET['s'] ) ) {
        wp_redirect( home_url( "/search/" . urlencode( get_query_var( 's' ) ) ) );
        exit();
    }
}
add_action( 'template_redirect', 'wpb_change_search_url' );

itsHall

function setWithExpiry(key, value, ttl) {
	const now = new Date()

	const item = {
		value: value,
		expiry: now.getTime() + ttl
	}
	localStorage.setItem(key, JSON.stringify(item))
}