Set WebChat to default to Libera; remove freenodeChat (#3926)

LocalSettings.php

@@ -4368,15 +4368,35 @@
 		'wmgUseWikibaseRepository' => true,
 	],
 
-	// WebChat config
+	// WebChat
 	'wgWebChatServer' => [
 		'default' => false,
 	],
 	'wgWebChatChannel' => [
 		'default' => false,
 	],
 	'wgWebChatClient' => [
-		'default' => 'freenodeChat',
+		'default' => 'LiberaChat',
+	],
+	'wgWebChatClients' => [
+		'default' => [
+			'Mibbit' => [
+				'url' => '//embed.mibbit.com/index.html',
+				'parameters' => [
+					'noServerMotd' => 'true',
+					'server' => '$$$server$$$',
+					'channel' => '$$$channel$$$',
+					'nick' => '$$$nick$$$',
+				],
+			],
+			'LiberaChat' => [
+				'url' => '//web.libera.chat/',
+				'parameters' => [
+					'channel' => '$$$channel$$$',
+					'nick' => '$$$nick$$$',
+				],
+			],
+		],
 	],
 
 	// WikiForum

ManageWikiSettings.php

@@ -477,12 +477,12 @@
 		'from' => 'webchat',
 		'type' => 'list',
 		'options' => [
-			'Freenode' => 'freenodeChat',
+			'Libera' => 'LiberaChat',
 			'Other Server' => 'Mibbit',
 		],
-		'overridedefault' => 'freenodeChat',
+		'overridedefault' => 'LiberaChat',
 		'section' => 'discussion',
-		'help' => 'This sets the web client to use. If you are not using Freenode, select Other Server.',
+		'help' => 'This sets the web client to use. If you are not using Libera, select Other Server.',
 		'requires' => [],
 	],
 	'wgWikiForumAllowAnonymous' => [