feat(init): add HTML support in formatter configuration

This commit introduces support for formatting HTML by adding 'prettier' to the formatter configuration. This enhancement allows for consistent styling across different file types, improving the coding process.

init.lua

@@ -789,6 +789,7 @@ require('lazy').setup({
         -- Conform can also run multiple formatters sequentially
         python = { 'ruff_format', 'ruff_organize_imports' },
         json = { 'prettier' },
+        html = { 'prettier' },
         -- You can use 'stop_after_first' to run the first available formatter from the list
         javascript = { 'prettierd', 'prettier', stop_after_first = true },
         yaml = { 'prettierd', 'prettier', stop_after_first = true },