fix: trouble extension. Works on Trouble.nvim v3.x

Author: xieyonn

lua/lualine/extensions/trouble.lua

@@ -1,9 +1,13 @@
 local M = {}
 
 local function get_trouble_mode()
-  local opts = require('trouble.config').options
+  local win = vim.api.nvim_get_current_win()
+  local trouble = vim.w[win].trouble
+  if trouble == nil or trouble.mode == nil then
+    return ''
+  end
 
-  local words = vim.split(opts.mode, '[%W]')
+  local words = vim.split(trouble.mode, '[%W]')
   for i, word in ipairs(words) do
     words[i] = word:sub(1, 1):upper() .. word:sub(2)
   end
@@ -17,6 +21,6 @@ M.sections = {
   },
 }
 
-M.filetypes = { 'Trouble' }
+M.filetypes = { 'trouble' }
 
 return M