v0.8.0: move position-cursor out of dirty-guarded redraw and out of dialog-guarded let — runs every frame unconditional

Removed (position-cursor fb w h) from inside redraw (which is gated by dirty
flags), and from inside the dialog-guarded (unless dialog* ...) block in the
main loop. Added unconditional (position-cursor be w h) at loop body level so
it runs every single iteration regardless of dirty state or dialog activity.
This ensures the cursor highlight always tracks cursor-pos correctly.

org/channel-tui-main.org

@@ -1093,11 +1093,9 @@ Returns T on success, nil on failure. Does NOT wait or retry."
                                                   (format nil "> ~a" (or filter ""))
                                                   (theme-color :input-prompt) bg-p))
                      (cl-tty.backend:end-sync be))
-                  (sleep 0.1)
-                  ;; Show terminal cursor at input position every frame
-                  (unless cl-tty.dialog:*dialog-stack*
-                    (passepartout.channel-tui:position-cursor be w h))))
-               (progn (disconnect-daemon)))))
+                   (sleep 0.1))
+                 (position-cursor be w h))
+                (progn (disconnect-daemon)))))
 #+END_SRC
 
 * Test Suite