Xpra: Ticket #2597: add keysyms as needed

Following up #856: when the keymap doesn't have the keysym we need... we just can't handle the key event. See also #1049


With the HTML5 client, we don't really have a list of keysyms pre-defined in advance: the client is free to use whatever input method is available to it, and we get unicode characters in the events.

Mon, 17 Feb 2020 07:50:56 GMT - Antoine Martin: status, description changed

Mon, 17 Feb 2020 07:51:21 GMT - Antoine Martin: description changed

Sat, 23 Jan 2021 05:55:37 GMT - migration script:

this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/2597