fix(lsp): formatter now use new null-ls api function (#2135)

lua/lvim/lsp/init.lua

@@ -73,7 +73,7 @@ local function select_default_formater(client)
   local formatters = require "lvim.lsp.null-ls.formatters"
   local client_filetypes = client.config.filetypes or {}
   for _, filetype in ipairs(client_filetypes) do
-    if #vim.tbl_keys(formatters.list_registered_providers(filetype)) > 0 then
+    if #vim.tbl_keys(formatters.list_registered(filetype)) > 0 then
       Log:debug("Formatter overriding detected. Disabling formatting capabilities for " .. client.name)
       client.resolved_capabilities.document_formatting = false
       client.resolved_capabilities.document_range_formatting = false