fix(fzf): add vertical offset for complex window borders

lua/dropbar/menu.lua

@@ -942,7 +942,7 @@ function dropbar_menu_t:fuzzy_find_open(opts)
   end
 
   local win_config =
-    vim.tbl_extend('force', self._win_configs, opts.win_configs or {}, {
+    vim.tbl_extend('force', self.win_configs, opts.win_configs or {}, {
       relative = 'win',
       win = self.win,
       anchor = 'NW',
@@ -952,6 +952,29 @@ function dropbar_menu_t:fuzzy_find_open(opts)
       row = self._win_configs.height + (menu_has_bottom_border and 1 or 0),
     })
 
+  for k, v in pairs(win_config) do
+    if type(v) == 'function' then
+      win_config[k] = v(self)
+    end
+  end
+
+  if type(win_config.border) == 'table' then
+    if #win_config.border > 4 then
+      win_config.border[2] = '' -- top
+    elseif #win_config.border > 1 then
+      win_config.border[1] = ''
+    elseif #win_config.border == 1 then
+      local ch = win_config.border[1]
+      for i = 1, 8 do
+        if i == 2 then
+          win_config.border[i] = ''
+        else
+          win_config.border[i] = ch
+        end
+      end
+    end
+  end
+
   -- don't show title in the fzf window
   win_config.title = nil
   win_config.title_pos = nil