fix(branch): extract correct branch name for term buffers (#1204)

terminal buffers have a different path that did not work to retrieve the branch name. By extracting the path out of the terminal path, the branch name can still resolve even when in term buffers.

lua/lualine/components/branch/git_branch.lua

@@ -76,6 +76,12 @@ function M.find_git_dir(dir_path)
 
   -- get file dir so we can search from that dir
   local file_dir = dir_path or vim.fn.expand('%:p:h')
+
+  -- extract correct file dir from terminals
+  if file_dir and file_dir:match('term://.*') then
+    file_dir = vim.fn.expand(file_dir:gsub('term://(.+)//.+', "%1"))
+  end
+
   local root_dir = file_dir
   -- Search upward for .git file or folder
   while root_dir do