fix(caldav): use direct.edit route in event activities

[st3iny]

• Resolves: none

Summary

There is no reason to force a view and timerange here. We can just use the simplified direct route as the object id is the only thing known in the activity.

['name' => 'view#index', 'url' => '/edit/{objectId}', 'verb' => 'GET', 'postfix' => 'direct.edit'],

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[tcitworld]

Checkout nodb tests though