feat: add npm for js dependencies + move src/ files to root folder

- add node service in docker-compose.yml
- update .devcontainer Dockerfile by adding node, npm and vim
- init package.json for npm with tailwindcss, postcss, commitlint and commitizen as dev dependencies
- update default layout main header and footer
- replace CI's welcome_message.php with home.php listing all podcasts
- add AUTHORS.md file
- add docs folder in which to place castopod's technical documentation

src/app/Config/View.php

@@ -1,34 +0,0 @@
-<?php namespace Config;
-
-class View extends \CodeIgniter\Config\View
-{
-	/**
-	 * When false, the view method will clear the data between each
-	 * call. This keeps your data safe and ensures there is no accidental
-	 * leaking between calls, so you would need to explicitly pass the data
-	 * to each view. You might prefer to have the data stick around between
-	 * calls so that it is available to all views. If that is the case,
-	 * set $saveData to true.
-	 */
-	public $saveData = true;
-
-	/**
-	 * Parser Filters map a filter name with any PHP callable. When the
-	 * Parser prepares a variable for display, it will chain it
-	 * through the filters in the order defined, inserting any parameters.
-	 * To prevent potential abuse, all filters MUST be defined here
-	 * in order for them to be available for use within the Parser.
-	 *
-	 * Examples:
-	 *  { title|esc(js) }
-	 *  { created_on|date(Y-m-d)|esc(attr) }
-	 */
-	public $filters = [];
-
-	/**
-	 * Parser Plugins provide a way to extend the functionality provided
-	 * by the core Parser by creating aliases that will be replaced with
-	 * any callable. Can be single or tag pair.
-	 */
-	public $plugins = [];
-}