Add action to send an email to all attendees of an event

[odzhychko]

Is your feature request related to a problem? Please describe.

When opening and event with attendees, I want to send a mail to all attendees.

Describe the solution you'd like

No concrete solution that I personally prefer.

Describe alternatives you've considered

Solutions I can think of:

• Email icon next to the "attendees" heading like for each participant
  • This might overload the UI
• New action menu next for the attendees action that includes
  • "Send email to all attendees"
  • The existing "find time button"
  • The existing "copy attendees to clipboard action"

Additional context

No response

[SebastianKrupinski]

Apparently we can do:

<a href="mailto:alice@example.com,bob@example.com,charlie@example.com">
    Email everyone
</a>

Or even:

<a href="mailto:alice@example.com,bob@example.com?cc=manager@example.com&bcc=archive@example.com&subject=Hello&body=Hi%20everyone">
    Send Email
</a>

And its supported by:

Client / Platform	Multiple recipients	, separator	Notes
Microsoft Outlook desktop (Windows)	✅	✅	Generally reliable
New Outlook for Windows	✅	✅	Supported
Outlook on the web	✅	✅	Browser/protocol-handler dependent
Apple Mail — macOS	✅	✅	Reliable
Apple Mail — iPhone/iPad	✅	✅	Reliable
Gmail web	✅	✅	When Gmail is registered as the mailto: handler
Gmail Android	✅	✅	Supported
Gmail iOS	✅	✅	Supported when configured as handler
Mozilla Thunderbird	✅	✅	Reliable
Samsung Email	✅	✅	Generally supported
Windows Mail / older Windows clients	✅	✅	Older versions vary
Yahoo Mail web	⚠️	Usually	Requires browser mailto: handler integration
Proton Mail web	⚠️	Usually	Depends on browser/handler configuration