feat: add invitation

[ZolotarevAlexandr]

Add invitation system, so clubs can organize collaborations
Suggested flow:

• Club lead creates event from their club
• They send an invitation to another club
• Invitation can be accepted, rejected, pending
• If invitation is accepted, both club leaders can edit the event

[dantetemplar]

@ZolotarevAlexandr May be better to just add moderator for that purpose?

[ZolotarevAlexandr]

So just admin/moderator could create such events?

[dantetemplar]

@ZolotarevAlexandr I mean organizer of event will be able to add any user as event moderator

[ArtemSBulgakov]

@dantetemplar The club names will be displayed in "host" section, and also the event should be shown on separate club page. I don't want allow any random club to add 108 as host to random events

[dantetemplar]

@ArtemSBulgakov So, what we suggested to do?

[ArtemSBulgakov]

@dantetemplar Do what's written in the issue

[ArtemSBulgakov]

@dantetemplar Moderators could be a separate feature

[dantetemplar]

Okay, then this feature serve only for display purposes and may be statistics, not for editing. Moderators will be done in separate feature.

[ZolotarevAlexandr]

@dantetemplar
Initial problem behind it was slightly different. Not "add person who will be able to edit event", but rather "since person will only be able to set his club as a host, how to create event with multiple clubs as hosts"

[dantetemplar]

@dantetemplar Initial problem behind it was slightly different. Not "add person who will be able to edit event", but rather "since person will only be able to set his club as a host, how to create event with multiple clubs as hosts"

Understood, then everything fine 🐍