feature: Provide example on how to show tags as tabs

[samueloph]

Did you check the docs?

• I have read the Grapple docs

Is your feature request related to a problem? Please describe.

I don't use neovim tabs, and I would like grapple tags to behave as if they were tabs, more specifically I would like the setup lualine to show the relpath of each grapple tag as if they were tabs.

Describe the solution you'd like

Similarly to the examples from https://github.com/cbochs/grapple.nvim?tab=readme-ov-file#lualine-component, but for a top bar, listing the relpath of the tags, and highlighting the tag that's in the current buffer (if the buffer is one of the tags).

Describe alternatives you've considered

The closest I could get was using:

tabline = {
                lualine_a = {
                    {
                        function()
                            local tags = require("grapple").tags()
                            if not tags then return "" end
                            local current_buf_path = vim.fn.expand('%:p')
                            return table.concat(vim.tbl_map(function(tag)
                                -- local redacted_path = vim.fn.fnamemodify(tag.path, ":~:.")
                                local redacted_path = vim.fn.fnamemodify(tag.path, ":t")
                                if tag.path == current_buf_path then
                                    return "[" .. redacted_path .. "]"  -- or use * or any other indicator you prefer
                                end
                                return redacted_path
                            end, tags), " | ")
                        end,
                    }
                }
            },

But there are small issues here and there (I didn't document them, though).

Additional context

No response