"Link a page"-dialog in a timeline should be alphabetically sorted and not close automatically

[ironjan]

Steps to reproduce the behavior

1. Go to https://www.notebook.ai/plan/timelines/new
2. Click on "Link a page"

Current behavior

A dialog pops up. This dialog lists different pages grouped by type and sorted by id, e.g.:

When a page is selected, the dialog closes. To link more than one page, "Link a page" must be clicked again to re-open the dialog.

Expected behavior

First, I would suggest to sort by name and not by ID.

Also, I'd suggest to keep the dialog open after clicking on an entry. This would enable users to link multiple pages without clicking "Link a page" multiple times. The dialog already closes automatically when a user clicks "outside".