style: Use "▌" character for status bar divider to match colors

gtm2.py

@@ -393,9 +393,11 @@ def draw_status_bars(stdscr, state):
     except curses.error:
         pass
     
-    # Draw divider in status bar
+    # Draw divider in status bar with left and right colors
     try:
-        stdscr.addch(state.height - 2, state.divider_col, "│")
+        # Use the left half block character "▌" which can show both colors
+        # First draw with left side color
+        stdscr.addch(state.height - 2, state.divider_col, "▌", left_attr)
     except curses.error:
         pass