Add release note for external calendars

[JoeyStk]

Short description

This PR adds the release note for the external calendars. This PR is one of the blocker for the next release. However we should wait for the final testing of @juliankehne until we merge this PR.

Proposed changes

• Add release note.

Side effects

• I used the initial issue Events: iCal subscription #100 as the issue id. Do you think another issue would be better suited?

Resolved issues

Fixes: #100

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Pull Request Review Guidelines

[MizukiTemma]

@JoeyStk
Do you mean we release and reveal the feature? Then permission adjustment may be needed, because currently only Service Team and CMS Team can see, change and delete external calendars (unless it is so planned).

[JoeyStk]

AFAIK for now that is the desired status and only members of the service team should be able to add new calendars. But maybe @osmers can give us an update if that's still the plan :)

[osmers]

Yep, that's still the plan for now :) do we need a release note then or would it only confuse municipalities when they see the note but then cannot do anything?

[JoeyStk]

Yep, that's still the plan for now :) do we need a release note then or would it only confuse municipalities when they see the note but then cannot do anything?

@osmers That's a good point. I'm a bit torn. I see your point, but then other the other hand I think there might be some municipalities, that might not hear about this feature? I think I would go all in: Add a release note, publish the blog post and maybe also write something in the authors chat. With this hopefully all interested municipalities learn about it in one form or another?

[osmers]

@JoeyStk alrighty, that's ok by me - I think most municipalities will rather read the chat/blog than the release notes anyways :P

[JoeyStk]

I think most municipalities will rather read the chat/blog than the release notes anyways :P

@osmers I think so too :)