feat(lang): add clojure support (#2179)

This adds support to Clojure as an extra _lang_ configuration. 
Closes https://github.com/LazyVim/LazyVim/pull/1484
@folke I read the docs and couldn't find a recommendation on _how_ to
suggest features, so I figured opening a PR should be enought. please
let me know if I should do anything else.

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Folke Lemaitre <folke.lemaitre@gmail.com>

lua/lazyvim/plugins/extras/lang/clojure.lua

@@ -0,0 +1,98 @@
+return {
+  recommended = function()
+    return LazyVim.extras.wants({
+      ft = { "clojure", "edn" },
+      root = { "project.clj", "deps.edn", "build.boot", "shadow-cljs.edn", "bb.edn" },
+    })
+  end,
+
+  -- Add Clojure & related to treesitter
+  {
+    "nvim-treesitter/nvim-treesitter",
+    opts = { ensure_installed = { "clojure" } },
+  },
+
+  -- Extend auto completion
+  {
+    "hrsh7th/nvim-cmp",
+    optional = true,
+    dependencies = {
+      "PaterJason/cmp-conjure",
+    },
+    opts = function(_, opts)
+      if type(opts.sources) == "table" then
+        vim.list_extend(opts.sources, { name = "clojure" })
+      end
+    end,
+  },
+
+  -- Enable rainbow parenthesis
+  { "HiPhish/rainbow-delimiters.nvim" },
+
+  -- Add s-exp mappings
+  { "PaterJason/nvim-treesitter-sexp" },
+
+  -- Colorize the output of the log buffer
+  {
+    "m00qek/baleia.nvim",
+    config = function()
+      vim.g.conjure_baleia = require("baleia").setup({ line_starts_at = 3 })
+
+      vim.api.nvim_create_user_command("BaleiaColorize", function()
+        vim.g.conjure_baleia.once(vim.api.nvim_get_current_buf())
+      end, { bang = true })
+
+      vim.api.nvim_create_user_command("BaleiaLogs", vim.g.conjure_baleia.logger.show, { bang = true })
+    end,
+  },
+
+  -- Use Clojure REPL
+  {
+    "Olical/conjure",
+    config = function(_, _)
+      require("conjure.main").main()
+      require("conjure.mapping")["on-filetype"]()
+    end,
+    init = function()
+      -- print color codes if baleia.nvim is available
+      local colorize = require("lazyvim.util").has("baleia.nvim")
+
+      if colorize then
+        vim.g["conjure#log#strip_ansi_escape_sequences_line_limit"] = 0
+      else
+        vim.g["conjure#log#strip_ansi_escape_sequences_line_limit"] = 1
+      end
+
+      -- disable diagnostics in log buffer and colorize it
+      vim.api.nvim_create_autocmd({ "BufWinEnter" }, {
+        pattern = "conjure-log-*",
+        callback = function()
+          local buffer = vim.api.nvim_get_current_buf()
+          vim.diagnostic.enable(false, { bufnr = buffer })
+
+          if colorize and vim.g.conjure_baleia then
+            vim.g.conjure_baleia.automatically(buffer)
+          end
+
+          vim.keymap.set(
+            { "n", "v" },
+            "[c",
+            "<CMD>call search('^; -\\+$', 'bw')<CR>",
+            { silent = true, buffer = true, desc = "Jumps to the begining of previous evaluation output." }
+          )
+          vim.keymap.set(
+            { "n", "v" },
+            "]c",
+            "<CMD>call search('^; -\\+$', 'w')<CR>",
+            { silent = true, buffer = true, desc = "Jumps to the begining of next evaluation output." }
+          )
+        end,
+      })
+
+      -- prefer LSP for jump-to-definition and symbol-doc, and use conjure
+      -- alternatives with <localleader>K and <localleader>gd
+      vim.g["conjure#mapping#doc_word"] = "K"
+      vim.g["conjure#mapping#def_word"] = "gd"
+    end,
+  },
+}