Don't always show input fields

[tcitworld]

Also the description should always be raw text, rich text needs #3234

In the Tasks app, links in the title/summary of the event/task are clickable. The same would be possible in the Calendar app, also for other properties, such as URL or location.

But it would require to not always show the input fields.

Originally posted by @raimund-schluessler in #674 (comment)

[an0nz]

Any estimate when this feature may make it into a release?
We use NC as a replacement for Office 365 and not being able to click on meeting links in the location and description fields is a constant pain point.