feat(yamlls): force documentFormattingProvider=true #4016

Problem:
The current version of the config will let you do formatting manually
`:lua vim.lsp.buf.format()` but the lsp doesn't have capabilities
registered correctly so if you use auto formatting like outlined in
[help pages](https://neovim.io/doc/user/lsp.html#lsp-attach)

    if not client:supports_method('textDocument/willSaveWaitUntil')
        and client:supports_method('textDocument/formatting') then
      vim.api.nvim_create_autocmd('BufWritePre', {
        group = vim.api.nvim_create_augroup('my.lsp', {clear=false}),
        buffer = args.buf,
        callback = function()
          vim.lsp.buf.format({ bufnr = args.buf, id = client.id, timeout_ms = 1000 })
        end,
      })
    end

, it won't enable for the yaml lsp because
`client:supports_method('textDocument/formatting')` returns false.

Solution:
The `on_init` hook, while hacky, will mark the capability as true.

0 files changed, 0 insertions, 0 deletions