feat: add elm tree sitter grammar and elmls configuration

flake.nix

@@ -131,6 +131,7 @@
                   meson
                   nu
                   tsx
+                  elm
                 ])
               ))
               # for some reason trigger_load still fails to load this in the

fnl/lsp/init.fnl

@@ -20,5 +20,6 @@
                                                   :tex
                                                   :rst
                                                   :typst]})
-            (lspconfig.fennel_ls.setup {}))
+            (lspconfig.fennel_ls.setup {})
+            (lspconfig.elmls.setup {}))
           {})}

lua/lsp/init.lua

@@ -18,6 +18,7 @@ local function _1_()
     lspconfig.nushell.setup({})
     lspconfig.vale_ls.setup({filetypes = {"markdown", "text", "tex", "rst", "typst"}})
     lspconfig.fennel_ls.setup({})
+    lspconfig.elmls.setup({})
   end
   return {}
 end