feat(formatting): allow full disabling of formatting

Author: mehalter

lua/astrolsp/config.lua

@@ -22,7 +22,7 @@
 
 ---@class AstroLSPFormatOpts
 ---@field format_on_save boolean|AstroLSPFormatOnSaveOpts? control formatting on save options
----@field disabled string[]? a list like table of language server names to disable formatting
+---@field disabled true|string[]? true to disable all or a list like table of language server names to disable formatting
 ---@field timeout_ms integer? configure the timeout length for formatting
 ---@field filter (fun(client):boolean)? fully override the default formatting filter function
 

lua/astrolsp/init.lua

@@ -115,7 +115,9 @@ M.on_attach = function(client, bufnr)
   end
 
   if
-    client.supports_method "textDocument/formatting" and not tbl_contains(M.config.formatting.disabled, client.name)
+    client.supports_method "textDocument/formatting"
+    and M.config.formatting.disabled ~= true
+    and not tbl_contains(M.config.formatting.disabled, client.name)
   then
     vim.api.nvim_buf_create_user_command(
       bufnr,