pass writer options correctly for docusaurus-md

[cderv]

Related to #8332 so that the workaround of setting columns works.

See #8332 for details about the real issue that will be fixed in next Pandoc version

Problem was that setting columns is currently ignored

format: docusaurus-md
columns: 101

This is because we use default PANDOC_WRITER_OPTIONS

quarto-cli/src/resources/extensions/quarto/docusaurus/docusaurus_citeproc.lua

Line 14 in 76d8d84

local result_str = pandoc.write(result, 'markdown_strict+raw_html+all_symbols_escapable+backtick_code_blocks+fenced_code_blocks+space_in_atx_header+intraword_underscores+lists_without_preceding_blankline+shortcut_reference_links+autolink_bare_uris+emoji+footnotes+gfm_auto_identifiers+pipe_tables+strikeout+task_lists+tex_math_dollars+pipe_tables+tex_math_dollars+header_attributes+raw_html+all_symbols_escapable+backtick_code_blocks+fenced_code_blocks+space_in_atx_header+intraword_underscores+lists_without_preceding_blankline+shortcut_reference_links')

This PR pass writer options but for now only columns

This is because passing all the PANDOC_WRITER_OPTIONS would have more impact that probably we don't want.
Example setting toc: true has currently no effect. Passing the all options would then create markdown TOC in the output, which I believe is not supported by Docusaurus (and we don't do it in 1.3 either)

So I would have expect this to be what to do (as I think the Writer worked like that) but it seems it is different

diff --git a/src/resources/extensions/quarto/docusaurus/docusaurus_citeproc.lua b/src/resources/extensions/quarto/docusaurus/docusaurus_citeproc.lua
index 15e29fefe4..93645d4877 100644
--- a/src/resources/extensions/quarto/docusaurus/docusaurus_citeproc.lua
+++ b/src/resources/extensions/quarto/docusaurus/docusaurus_citeproc.lua
@@ -10,7 +10,7 @@ function Pandoc(doc)
       end
     end
   })
-
-  local result_str = pandoc.write(result, 'markdown_strict+raw_html+all_symbols_escapable+backtick_code_blocks+fenced_code_blocks+space_in_atx_header+intraword_underscores+lists_without_preceding_blankline+shortcut_reference_links+autolink_bare_uris+emoji+footnotes+gfm_auto_identifiers+pipe_tables+strikeout+task_lists+tex_math_dollars+pipe_tables+tex_math_dollars+header_attributes+raw_html+all_symbols_escapable+backtick_code_blocks+fenced_code_blocks+space_in_atx_header+intraword_underscores+lists_without_preceding_blankline+shortcut_reference_links')
+  local cli_opts = pandoc.WriterOptions(PANDOC_WRITER_OPTIONS)
+  local result_str = pandoc.write(result, 'markdown_strict+raw_html+all_symbols_escapable+backtick_code_blocks+fenced_code_blocks+space_in_atx_header+intraword_underscores+lists_without_preceding_blankline+shortcut_reference_links+autolink_bare_uris+emoji+footnotes+gfm_auto_identifiers+pipe_tables+strikeout+task_lists+tex_math_dollars+pipe_tables+tex_math_dollars+header_attributes+raw_html+all_symbols_escapable+backtick_code_blocks+fenced_code_blocks+space_in_atx_header+intraword_underscores+lists_without_preceding_blankline+shortcut_reference_links', cli_opts)
   return pandoc.Pandoc({pandoc.RawBlock('markdown', result_str)})
 end

@cscheid what is your take on this ? Do we need to check more writer options to determine which ones to let pass through ?

As we are so close to 1.4 release, I choose to keep this scoped to #8332

Other note: Setting columns in YAML does not work in 1.3 either. So this is a specific fix for #8332 workaround to work with docusaurus

[cscheid]

@cscheid what is your take on this ? Do we need to check more writer options to determine which ones to let pass through ?

Yes, that would be the right thing to do, but it's not clear to me how to decide which to pass and which not to in a principled way.

[cderv]

how to decide which to pass and which not to in a principled way.

I was thinking related to feature that require support or not. Like TOC.

We can probably table that in 1.5 and not now.