Squash meetingID password get request to a single request

[alecchendev]

Current flow:
Submit password -> check password correct -> go to URL
Load new page -> fetch meeting data

Proposed flow:
Submit password -> check password correct
-> send back meeting data -> react dynamically changes page to calendar frontend or possibly send the received data to the new URL if that's possible

Possible issue:
If people can change certain variables and unveil the calendar frontend before getting a meeting