chore(build): auto-generate docs

Author: github-actions[bot]

docs/plugins/ui.md

@@ -37,6 +37,9 @@ opts = {
         highlight = "Directory",
         text_align = "left",
       },
+      {
+        filetype = "snacks_layout_box",
+      },
     },
     ---@param opts bufferline.IconFetcherOpts
     get_element_icon = function(opts)
@@ -88,6 +91,9 @@ opts = {
           highlight = "Directory",
           text_align = "left",
         },
+        {
+          filetype = "snacks_layout_box",
+        },
       },
       ---@param opts bufferline.IconFetcherOpts
       get_element_icon = function(opts)