feat(which-key): added search command for colour highlights (#2693)

* feat(which-key): added search command for colour highlights

* chore: review suggestion

Co-authored-by: kylo252 <59826753+kylo252@users.noreply.github.com>

Co-authored-by: kylo252 <59826753+kylo252@users.noreply.github.com>

lua/lvim/core/which-key.lua

@@ -244,6 +244,7 @@ M.config = function()
         c = { "<cmd>Telescope colorscheme<cr>", "Colorscheme" },
         f = { "<cmd>Telescope find_files<cr>", "Find File" },
         h = { "<cmd>Telescope help_tags<cr>", "Find Help" },
+        H = { "<cmd>Telescope highlights<cr>", "Find highlight groups" },
         M = { "<cmd>Telescope man_pages<cr>", "Man Pages" },
         r = { "<cmd>Telescope oldfiles<cr>", "Open Recent File" },
         R = { "<cmd>Telescope registers<cr>", "Registers" },