[Web] Show textarea for queue item; [Web] Add lang string for "regex maps"; [Web] Add lang string for "loading" when opening queue item

data/web/lang/lang.en.json

@@ -191,6 +191,7 @@
         "last_applied": "Last applied",
         "license_info": "A license is not required but helps further development.<br><a href=\"https://www.servercow.de/mailcow?lang=en#sal\" target=\"_blank\" alt=\"SAL order\">Register your GUID here</a> or <a href=\"https://www.servercow.de/mailcow?lang=en#support\" target=\"_blank\" alt=\"Support order\">buy support for your mailcow installation.</a>",
         "link": "Link",
+        "loading": "Please wait...",
         "logo_info": "Your image will be scaled to a height of 40px for the top navigation bar and a max. width of 250px for the start page. A scalable graphic is highly recommended.",
         "lookup_mx": "Match destination against MX (.outlook.com to route all mail targeted to a MX *.outlook.com over this hop)",
         "main_name": "\"mailcow UI\" name",
@@ -244,6 +245,7 @@
         "recipients": "Recipients",
         "refresh": "Refresh",
         "regen_api_key": "Regenerate API key",
+        "regex_maps": "Regex maps",
         "relay_from": "\"From:\" address",
         "relay_run": "Run test",
         "relayhosts": "Sender-dependent transports",