[HS-1241612] Prevent conference names from containing special characters

[canac]

Description

• Prevent users from creating conferences with names containing ampersand or double quotes. Apparently, those special characters are causing issues on the server.
• Also prevent users from editing conferences to contain an ampersand or double quote. If they have an existing conference with an ampersand or a double quote, they will change the name before they can edit any other conference details. My understanding is that that is desirable.
• Also prevent users from editing conference abbreviations to contain an ampersand or double quote.

Testing

• From the admin dashboard, click "Create New Event"
  • Validate that there are errors when the event name is empty (after focusing the name input and then moving focus) and the form cannot be submitted.
  • Validate that there are errors when the event name contains an ampersand (&) and the form cannot be submitted.
  • Validate that there are errors when the event name contains a double quote (") and the form cannot be submitted.
  • Validate that there are no errors when the event name is valid and the form can be submitted.
• From the admin dashboard, click on an event, then go to Details and change the Event Name.
  • Validate that there are errors when the event name contains an ampersand (&).
  • Validate that there are errors when the event name contains a double quote (").
  • Validate that there are no errors when the event name is valid and that the event name is updated.
• From the admin dashboard, click on an event, then go to Details and change the Event Abbreviation.
  • Validate that there are errors when the event abbreviation contains an ampersand (&).
  • Validate that there are errors when the event abbreviation contains a double quote (").
  • Validate that there are no errors when the event abbreviation is valid and that the event abbreviation is updated.

https://secure.helpscout.net/conversation/2731356723/1241612/

cc @hlbraddock

[dr-bizz]

It works well. Thank you or fixing this. I left a few comments, but I will approve so not to block you.