Feature: settings (#216)

* New admin panel Pages: Options + Config [WIP]

* Forgot the plugin example of options

* Rename to settings.php

* Add Settings Class

* New myaac_settings table

* Add $limit parameter to $db->select method

* Add $member var annotation

* Remove useless title_separator from config

* Move $menus to menus.php

Also fix active link when menu item has subpage

* Settings [WIP]

New Settings class
New Plugins::load() method
Move config.php to settings.php
MyAAC Settings will have plugin_name = 'core'
Add compat_config.php

* Change options.php to settings.php

* Change name to settings

* Add Settings menu

* Add Sections + Add setting($key) function

Reorganisation

* Add email + password fields as type

* Update 33.php

* add settings migration

* php 8 compatibility

* add missing hook

* Add categories in tabs, move more settings, revert back getPluginSettings

Categories and sections are now not numbered
Remove example settings plugin

* fix typo

* Update .gitignore

* Add 36th migration for settings table

* Execute migrations just after db connect

* Update plugins.php

* [WIP] Some work on settings

Add hidden settings
New method: parse, to parse settings from array
Move base html to twig template
Remove vocation loading from .xml, instead use predefined voc names

* Rename

* Fix path

* [WIP] More work on settings

Move more config to settings (mainly mail_* + some other)
Remove mail_admin, wasnt used anywhere
Add return type to some functions
Add Twig settings(key) function
Possibility to save setting to db

* Add min, max, step to number field option

* Re-enable plugin if disabled and already installed

* Add Settings menu, including all plugins with settings

One change included in previous commit, due to missclick

* Nothing important

* Better boolean detection

* More detailed error message in settings

* Lets call it settings.name instead

* Add new function: only_if, to hide fields when they are not enabled [WIP]

Not fully finished yet

* guild_management: show_if

* Hide section title on show_if

* Fix: check on page load if radio button is checked

* Add: show_if - account_mail_verify

* nothing important

* Rename team_* variables + add to deprecated

* Change variable name

* Extract Settings:save function

* Add settings.callbacks.get

* Move forum config to settings

* Move status config to settings

* Remove whitespaces

* More config to settings: account_types, genders, highscores, admin

* Move signature config to settings

* Move news config to settings

* Rename variable

* Save config.php in Settings

Egg and hen problem solved :)
* Test database connection on save settings -> prevents from making website unusable if connection is wrong
* Test server_path -> same
There is no config.php anymore, just config.local.php, which can be edited manually and also from admin panel

* Remove configs from previous commit

* Fix create account, if account_create_character_create is enabled

* Add more deprecated configs

* Add more info into comment

* Update 5-database.php

* Fix menu highlighting & opening

* Update template.php

* Enable script option

* Reword email settings + move two new settings

* add last_kills_limit + move shop

* google_analytics_id

* add mail_lost_account_interval

* Create character blocked words (by @gpedro), just moved to settings

* Fix google_analytics

* create character name config moved to settings

* Fix for install warning - min/max length

* New create character checks configurable: block monsters & spells names

* fixes

* Improve character npc name check

* New setting: donate_column + move donate config to settings

* Add super fancy No Refresh saving with a toast

* Add new possibility: to deny saving setting if condition is not met

* Move database settings to separate category

* Fix default value displaying

* Add database_hash setting

* add last_kills_limit to compat config

* Move create character blocked names down

* Every setting needs to have default

* Move rest of config to settings

Remove config.php completely
Add new settings category: Game
Fix account_login_by_email
Min textarea size = 2 + adjusted automatically

system/pages/account/create.php

@@ -219,7 +219,7 @@ if($save)
 			$tmp_account = (USE_ACCOUNT_NAME ? $account_name : $account_id);
 		}
 
-		if($config['mail_enabled'] && $config['account_mail_verify'])
+		if(setting('core.mail_enabled') && $config['account_mail_verify'])
 		{
 			$hash = md5(generateRandomString(16, true, true) . $email);
 			$new_account->setCustomField('email_hash', $hash);
@@ -294,7 +294,7 @@ if($save)
 				'custom_buttons' => config('account_create_character_create') ? '' : null
 			));
 
-			if($config['mail_enabled'] && $config['account_welcome_mail'])
+			if(setting('core.mail_enabled') && $config['account_welcome_mail'])
 			{
 				$mailBody = $twig->render('account.welcome_mail.html.twig', array(
 					'account' => $tmp_account
@@ -313,7 +313,7 @@ if($save)
 }
 
 $country_recognized = null;
-if($config['account_country_recognize']) {
+if(setting('core.account_country_recognize')) {
 	$country_session = getSession('country');
 	if($country_session !== false) { // get from session
 		$country_recognized = $country_session;