fix: revert w→chat-w replacement outside view-chat

view-status and view-sidebar don't have chat-w bound. Reverted
lines 78 and 236 to use w instead of chat-w.

org/channel-tui-view.org

@@ -75,7 +75,7 @@ Returns a list of strings, one per line."
     (dotimes (col w)
       (cl-tty.backend:draw-text fb 0 (- h 1) (make-string w :initial-element #\Space) nil bg))
     (cl-tty.backend:draw-text fb 1 (- h 1) left fg nil)
-    (cl-tty.backend:draw-text fb (- chat-w (length right) 2) (- h 1) right fg nil)))
+    (cl-tty.backend:draw-text fb (- w (length right) 2) (- h 1) right fg nil)))
 
 
 ;; v0.7.2: search-highlight — wrap matching text in **bold** for markdown
@@ -233,7 +233,7 @@ Returns a list of strings, one per line."
   "Render the right-side sidebar panel with warm colors."
   (let* ((w (or (and (numberp w) (> w 0) w) 80))
          (h (or (and (numberp h) (> h 0) h) 24))
-         (x (- chat-w (or (st :sidebar-width) 30)))
+         (x (- w (or (st :sidebar-width) 30)))
          (y 0))
     ;; Vertical separator
     (dotimes (row h)