Build and update process refactoring

[sergsadovyi]

• wrap strings to i18n function with proper text domain __('string', 'alps-gutenbers-blocks')
• add pot and json generation scripts
• refactor latest-posts and accordion code to ESNext. TODO: refactor other blocks

[designerbrent]

@sergsadovyi Is this PR ready to be fully reviewed?

[sergsadovyi]

Not yet. Working on build process.

[designerbrent]

@sergsadovyi When attempting to run the code, I get the following error:

Fatal error: Uncaught Error: Class 'ALPS\Gutenberg\Blocks\LatestPostsBlock' not found in /Users/hardingeb/Sites/alps/alps-wordpress-3/wordpress5/wp-content/plugins/alps-gutenberg-blocks/src/init.php:47 Stack trace: #0 /Users/hardingeb/Sites/alps/alps-wordpress-3/wordpress5/wp-includes/class-wp-hook.php(287): alps_gutenberg_blocks_init('') #1 /Users/hardingeb/Sites/alps/alps-wordpress-3/wordpress5/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array) #2 /Users/hardingeb/Sites/alps/alps-wordpress-3/wordpress5/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #3 /Users/hardingeb/Sites/alps/alps-wordpress-3/wordpress5/wp-settings.php(540): do_action('init') #4 /Users/hardingeb/Sites/alps/alps-wordpress-3/wordpress5/wp-config.php(90): require_once('/Users/hardinge...') #5 /Users/hardingeb/Sites/alps/alps-wordpress-3/wordpress5/wp-load.php(37): require_once('/Users/hardinge...') #6 /Users/hardingeb/Sites/alps/alps-wordpress-3/wordpress5/wp-blog-header.php(13): require_once('/Users/hardinge...') #7 /Users/ in /Users/hardingeb/Sites/alps/alps-wordpress-3/wordpress5/wp-content/plugins/alps-gutenberg-blocks/src/init.php on line 47

There has been a critical error on your website.

I tried running npm run dev and got the following error:

./src/blocks/latest-posts/components/edit.js Module not found: Can't resolve '@wordpress/api-fetch' in '/Users/hardingeb/Sites/alps/alps-wordpress-3/wordpress5/wp-content/plugins/alps-gutenberg-blocks/src/blocks/latest-posts/components'