UX: Improve dialog to select show owners (show view)

Parent: [EPIC] Extend Show Management Area and improve ... (#149 - closed)

Currently the dialog to select owners of a show, renders a long list of all user accounts.

This list exceeds the view-port of the screen.

Click to expand

As a consequence the buttons at the bottom are not visible and can only be reached with quite some scrolling-action.

Click to expand

Additionally it was noted that:

• the list of accounts is not ordered alphabetically.
• the list also holds in-active accounts.

Proposed solution

• Make the dialog smaller
• Offer a filter input, to display only accounts matching the filter string (similar to show list dropdown)
• Order the list items alphabetically
• Pawel@o94: Display active accounts only (in-active accounts can still be accessed via the Steering backend) Edit David: To keep the functionality intact, when an assigned account becomes inactive, we probably should keep them in the list anyway. This should not be a big problem (count-wise), when we have a filter-input provided.