Calendar / Show details in the time grid

• Nextcloud-Version: 29.0.12.2

Especially in longer scheduled entrys a big colored box is shown in the calendar grid, which is only filed with the calendar title. For a faster view it would be great when a new line with icons can be added (icons are suggestions, maybe you've idea for better ones), alternate with text, but I think icons are cleaner in layout:

🗨 = Link to a conference site is in the location field. When clicking the icon the window opens in a new tab. This would be great to start conferences directly.
📞= A phonenumber is filled in the notification field ( 0-9+ ). The link is a tel:-link so that a call can be initiated
🗺 = Adress is filed in. In this case I suggest a link to google maps.

In all versions a title-tag on the icon could show the text in the field. It's right that the title would only be visible in the web GUI when using a mouse. But I think this is ok because in most cases the calendar is implemented on mobile devices in a native app.

The complete colored box could also have a title tag which shows the text from the note text area. If you don't like titles on every icon, here could also be in first line the data of the location field and after a break the data of the note area.

So the calendar would in future also have a clean layout, but details of an entry can be visible without open the editing modal/sidebar. This make the calendar more comfortable to use.

No file, test, or entry point is named. Start by locating the calendar time-grid event rendering and reviewing how location, notification, and note fields are exposed; done means agreeing on the displayed details, link behavior, accessibility, and layout before implementing and testing the feature.