feature: provide telescope lookup

[airtonix]

Did you check the docs?

• [X] I have read all the which-key.nvim docs

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

i want to search and filter keymaps that have been registered via whichkey from within telescope.

so i can filter by description instead of keymap.

Describe the solution you'd like

a telescope extension that can see all the keymaps registered with whichkey

Describe alternatives you've considered

go back to using vscode

Additional context

using nvchad.

[folke]

not adding this, sorry