• Support screen size change notifications

    From Deucе@1:103/705 to GitLab note in main/sbbs on Sun Mar 30 18:52:42 2025
    https://gitlab.synchro.net/main/sbbs/-/issues/886#note_6955

    When this happens, the current position, line counter, etc. all become unknown... we'll likely need to query at least the cursor position.

    Some terminals send many resize events when dragging as well, so processing may need to be deferred in some way.
    --- SBBSecho 3.24-Linux
    * Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)