fix(extui): using tracked message column in cleared buffer (#34154)

Problem:  Using tracked message column as column in cleared buffer.
Solution: Ensure column does not exceed current line length.
          Further work to ensure carriage return and cmdline block mode
          work properly.

runtime/lua/vim/_extui/cmdline.lua

@@ -164,8 +164,8 @@ end
 
 --- Clear cmdline buffer and leave the cmdline.
 function M.cmdline_block_hide()
-  M.cmdline_hide(nil, true)
   M.row = 0
+  M.cmdline_hide(nil, true)
 end
 
 return M