couple of bugs in streaming tech

[argoopjmc]

• [ ] slides not working
• [x] video not streaming
• [x] emails not being sent out on creation / reminders etc.
• [ ] excellence asks me to unlock email reminder
• [ ] still asked to provide link for talk and unable to publish despite excellence
• [x] weird message about some details missing on trying to publish talk
• [x] ensure start time < end time of meeting
• [x] #365
• [x] https://github.com/agora-inc/agora/issues/360
• [x] all topic seems to be causing issue ?
• [ ] #366
• [x] duplicate button in cafeteria
• [x] Overlapping text in pricing options
• [ ] Latex not rendering in title for agora ( but works in preview)

[AlainRossier]

• The "excellence asks me to unlock email reminder" is a weird one, it only happens once, when you reload the page it's fine.
• Don't know exactly what is the weird message on publishing talk. The expected behaviour is to freeze the publish button if some basic info is not there
• The problem with emails is most likely NOT the codebase, but smth with sendgrid. I'll check that