refactor: Remove status bar drag handle and allow dragging anywhere on top line

gtm

@@ -1016,16 +1016,15 @@ def draw_search_mode(stdscr, state: AppState, layout: StatusBarLayout):
         pass
 
 def draw_resize_handle(stdscr, state: AppState, layout: StatusBarLayout):
-    """Draw the resize handle"""
+    """Draw the status bar height indicator (but no visible handle)"""
     try:
-        handle_char = "≡" if state.dragging_status_bar else "="
-        handle_text = handle_char * 5  # Make handle wider
+        # Only show the number of lines when there are more than 2
         if state.status_bar_height > 2:
-            handle_text += f" ({state.status_bar_height} lines)"
-        handle_x = layout.screen_width // 2 - len(handle_text) // 2
-        # Draw the handle on the main status line, but only if it won't overlap with other content
-        if handle_x > 0 and handle_x + len(handle_text) < layout.screen_width:
-            stdscr.addstr(layout.main_status_y, handle_x, handle_text, curses.A_REVERSE | curses.A_BOLD)
+            height_text = f"({state.status_bar_height} lines)"
+            height_x = layout.screen_width // 2 - len(height_text) // 2
+            # Draw the height indicator on the main status line, but only if it won't overlap with other content
+            if height_x > 0 and height_x + len(height_text) < layout.screen_width:
+                stdscr.addstr(layout.main_status_y, height_x, height_text, curses.A_REVERSE | curses.A_BOLD)
     except curses.error:
         pass
 
@@ -1204,8 +1203,8 @@ def handle_mouse_input(stdscr, state: AppState) -> AppState:
         if bstate & curses.BUTTON1_PRESSED:
             if state.show_sidebar and abs(mx - state.divider_col) <= 1:
                 return replace(state, dragging_divider=True)
-            elif my == status_bar_start and abs(mx - (state.width // 2)) <= 3:
-                # Clicked on the status bar handle (wider click area)
+            elif my == status_bar_start:
+                # Clicked anywhere on the top line of the status bar
                 return replace(state, dragging_status_bar=True)
             else:
                 focus = "right"