Add waitinglist for public rooms

New Feature in 0.65.0

• Add a waitinglist for public rooms
• Activate the waitinglist feature under the participant limitation
• Move Users from the waitinglist to the participants board. (no automatism)
• Add the possibility to show notifications in toast from a central URL .env.local (laf_notificationUrl)

Bug fix 0.65.0 - 0.65.1

• When no limit in max participants then it was shown that there is a waitinglist

required steps

php bin/console doc:mig:mig
to use the laf_notificationUrl feature, you need to set the variable to a json file
f.ex. https://www3.h2-invent.com/notification.json
The file shall look like this

    {"text": "here comes the text to show ",
"head": "Wartung ",
    "type": "warning"
      },
    {"text": "here comes the text to show ",
"head": "Wartung ",
    "type": "error"
      },
    {"text": "here comes the text to show ",
"head": "Wartung ",
    "type": "success"
      }  
]

The notification is shown on every load of every page.